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2019-04-25driver core: platform: Fix the usage of platform device name(pdev->name)Venkata Narendra Kumar Gutta
Platform core is using pdev->name as the platform device name to do the binding of the devices with the drivers. But, when the platform driver overrides the platform device name with dev_set_name(), the pdev->name is pointing to a location which is freed and becomes an invalid parameter to do the binding match. use-after-free instance: [ 33.325013] BUG: KASAN: use-after-free in strcmp+0x8c/0xb0 [ 33.330646] Read of size 1 at addr ffffffc10beae600 by task modprobe [ 33.339068] CPU: 5 PID: 518 Comm: modprobe Tainted: G S W O 4.19.30+ #3 [ 33.346835] Hardware name: MTP (DT) [ 33.350419] Call trace: [ 33.352941] dump_backtrace+0x0/0x3b8 [ 33.356713] show_stack+0x24/0x30 [ 33.360119] dump_stack+0x160/0x1d8 [ 33.363709] print_address_description+0x84/0x2e0 [ 33.368549] kasan_report+0x26c/0x2d0 [ 33.372322] __asan_report_load1_noabort+0x2c/0x38 [ 33.377248] strcmp+0x8c/0xb0 [ 33.380306] platform_match+0x70/0x1f8 [ 33.384168] __driver_attach+0x78/0x3a0 [ 33.388111] bus_for_each_dev+0x13c/0x1b8 [ 33.392237] driver_attach+0x4c/0x58 [ 33.395910] bus_add_driver+0x350/0x560 [ 33.399854] driver_register+0x23c/0x328 [ 33.403886] __platform_driver_register+0xd0/0xe0 So, use dev_name(&pdev->dev), which fetches the platform device name from the kobject(dev->kobj->name) of the device instead of the pdev->name. Signed-off-by: Venkata Narendra Kumar Gutta <vnkgutta@codeaurora.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-04-25driver core: Postpone DMA tear-down until after devres release for probe failureJohn Garry
In commit 376991db4b64 ("driver core: Postpone DMA tear-down until after devres release"), we changed the ordering of tearing down the device DMA ops and releasing all the device's resources; this was because the DMA ops should be maintained until we release the device's managed DMA memories. However, we have seen another crash on an arm64 system when a device driver probe fails: hisi_sas_v3_hw 0000:74:02.0: Adding to iommu group 2 scsi host1: hisi_sas_v3_hw BUG: Bad page state in process swapper/0 pfn:313f5 page:ffff7e0000c4fd40 count:1 mapcount:0 mapping:0000000000000000 index:0x0 flags: 0xfffe00000001000(reserved) raw: 0fffe00000001000 ffff7e0000c4fd48 ffff7e0000c4fd48 0000000000000000 raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000 page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set bad because of flags: 0x1000(reserved) Modules linked in: CPU: 49 PID: 1 Comm: swapper/0 Not tainted 5.1.0-rc1-43081-g22d97fd-dirty #1433 Hardware name: Huawei D06/D06, BIOS Hisilicon D06 UEFI RC0 - V1.12.01 01/29/2019 Call trace: dump_backtrace+0x0/0x118 show_stack+0x14/0x1c dump_stack+0xa4/0xc8 bad_page+0xe4/0x13c free_pages_check_bad+0x4c/0xc0 __free_pages_ok+0x30c/0x340 __free_pages+0x30/0x44 __dma_direct_free_pages+0x30/0x38 dma_direct_free+0x24/0x38 dma_free_attrs+0x9c/0xd8 dmam_release+0x20/0x28 release_nodes+0x17c/0x220 devres_release_all+0x34/0x54 really_probe+0xc4/0x2c8 driver_probe_device+0x58/0xfc device_driver_attach+0x68/0x70 __driver_attach+0x94/0xdc bus_for_each_dev+0x5c/0xb4 driver_attach+0x20/0x28 bus_add_driver+0x14c/0x200 driver_register+0x6c/0x124 __pci_register_driver+0x48/0x50 sas_v3_pci_driver_init+0x20/0x28 do_one_initcall+0x40/0x25c kernel_init_freeable+0x2b8/0x3c0 kernel_init+0x10/0x100 ret_from_fork+0x10/0x18 Disabling lock debugging due to kernel taint BUG: Bad page state in process swapper/0 pfn:313f6 page:ffff7e0000c4fd80 count:1 mapcount:0 mapping:0000000000000000 index:0x0 [ 89.322983] flags: 0xfffe00000001000(reserved) raw: 0fffe00000001000 ffff7e0000c4fd88 ffff7e0000c4fd88 0000000000000000 raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000 The crash occurs for the same reason. In this case, on the really_probe() failure path, we are still clearing the DMA ops prior to releasing the device's managed memories. This patch fixes this issue by reordering the DMA ops teardown and the call to devres_release_all() on the failure path. Reported-by: Xiang Chen <chenxiang66@hisilicon.com> Tested-by: Xiang Chen <chenxiang66@hisilicon.com> Signed-off-by: John Garry <john.garry@huawei.com> Reviewed-by: Robin Murphy <robin.murphy@arm.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-04-25driver core: platform: Propagate error from insert_resource()Andy Shevchenko
Since insert_resource() might return an error we don't need to shadow its error code and would safely propagate to the user. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-04-25acpi/hmat: fix an uninitialized memory_targetQian Cai
The commit 665ac7e92757 ("acpi/hmat: Register processor domain to its memory") introduced an uninitialized "struct memory_target" that could cause an incorrect branching. drivers/acpi/hmat/hmat.c:385:6: warning: variable 'target' is used uninitialized whenever 'if' condition is false [-Wsometimes-uninitialized] if (p->flags & ACPI_HMAT_MEMORY_PD_VALID) { ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/acpi/hmat/hmat.c:392:6: note: uninitialized use occurs here if (target && p->flags & ACPI_HMAT_PROCESSOR_PD_VALID) { ^~~~~~ drivers/acpi/hmat/hmat.c:385:2: note: remove the 'if' if its condition is always true if (p->flags & ACPI_HMAT_MEMORY_PD_VALID) { ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/acpi/hmat/hmat.c:369:30: note: initialize the variable 'target' to silence this warning struct memory_target *target; ^ = NULL Signed-off-by: Qian Cai <cai@lca.pw> Reviewed-by: Mukesh Ojha <mojha@codeaurora.org> Fixes: 665ac7e92757 ("acpi/hmat: Register processor domain to its memory") Reviewed-by: Nathan Chancellor <natechancellor@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-04-25acpi/hmat: Update acpi_hmat_type enum with ACPI_HMAT_TYPE_PROXIMITYAlison Schofield
ACPI 6.3 changed the subtable "Memory Subsystem Address Range Structure" to "Memory Proximity Domain Attributes Structure". Updating and renaming of the structure was included in commit: ACPICA: ACPI 6.3: HMAT updates (9a8d961f1ef835b0d338fbe13da03cb424e87ae5) Rename the enum type to match the subtable and structure naming. Signed-off-by: Alison Schofield <alison.schofield@intel.com> Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-04-25acpi/hmat: fix memory leaks in hmat_init()Qian Cai
The commit 665ac7e92757 ("acpi/hmat: Register processor domain to its memory") introduced some memory leaks below due to it fails to release the heap memory in an error path, and then those statically-allocated __initdata memory which reference them get freed during boot renders those heap memory as leaks. Since it is valid to pass NULL to acpi_put_table(), it is fine to call it even if acpi_get_table() returns an error. unreferenced object 0xc8ff8008349e9400 (size 128): comm "swapper/0", pid 1, jiffies 4294709236 (age 48121.476s) hex dump (first 32 bytes): 00 d0 9e 34 08 80 ff 84 d8 00 43 11 00 10 ff ff ...4......C..... 00 00 00 00 ff ff ff ff 00 00 00 00 00 00 00 00 ................ backtrace: [<00000000869d4503>] __kmalloc+0x568/0x600 [<0000000070fd6afb>] alloc_memory_target+0x50/0xd8 [<00000000efa2081e>] srat_parse_mem_affinity+0x58/0x5c [<000000008bfaef74>] acpi_parse_entries_array+0x1c8/0x2c0 [<0000000022804877>] acpi_table_parse_entries_array+0x11c/0x138 [<00000000ffe9cd34>] acpi_table_parse_entries+0x7c/0xac [<00000000a7023afd>] hmat_init+0x90/0x174 [<00000000694a86c1>] do_one_initcall+0x2d8/0x5f8 [<0000000024889da9>] do_initcall_level+0x37c/0x3fc [<000000009be02908>] do_basic_setup+0x38/0x50 [<0000000037b3ac0a>] kernel_init_freeable+0x194/0x258 [<00000000f5741184>] kernel_init+0x18/0x334 [<000000007b30f423>] ret_from_fork+0x10/0x18 [<000000006c7147a8>] 0xffffffffffffffff Signed-off-by: Qian Cai <cai@lca.pw> Fixes: 665ac7e92757 ("acpi/hmat: Register processor domain to its memory") Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-04-25drivers: fix a typo in the kernel doc for devm_platform_ioremap_resource()Bartosz Golaszewski
It should have been 'management' not 'managemend'. Fixes: 7945f929f1a7 ("drivers: provide devm_platform_ioremap_resource()") Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com> Reviewed-by: Mukesh Ojha <mojha@codeaurora.org> Reviewed-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-04-25mm/memory_hotplug: Do not unlock when fails to take the device_hotplug_lockzhong jiang
When adding the memory by probing memory block in sysfs interface, there is an obvious issue that we will unlock the device_hotplug_lock when fails to takes it. That issue was introduced in Commit 8df1d0e4a265 ("mm/memory_hotplug: make add_memory() take the device_hotplug_lock") We should drop out in time when fails to take the device_hotplug_lock. Fixes: 8df1d0e4a265 ("mm/memory_hotplug: make add_memory() take the device_hotplug_lock") Reported-by: Yang yingliang <yangyingliang@huawei.com> Signed-off-by: zhong jiang <zhongjiang@huawei.com> Reviewed-by: Oscar Salvador <osalvador@suse.de> Reviewed-by: David Hildenbrand <david@redhat.com> Acked-by: Michal Hocko <mhocko@suse.com> Cc: stable <stable@vger.kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-04-25driver core: Clarify which counterparts to use to device_add()Borislav Petkov
It is not absolutely clear from the docs how the cleanup path after device_add() should look like so spell it out explicitly. No functional changes, just documentation. Signed-off-by: Borislav Petkov <bp@suse.de> Reviewed-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-04-04drivers: base: power: add proper SPDX identifiers on files that did not have ↵Greg Kroah-Hartman
them. There were a few files in the driver core power code that did not have SPDX identifiers on them, so fix that up. At the same time, remove the "free form" text that specified the license of the file, as that is impossible for any tool to properly parse. Cc: "Rafael J. Wysocki" <rafael@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-04-04drivers: base: firmware_loader: add proper SPDX identifiers on files that ↵Greg Kroah-Hartman
did not have them. There were two files in the firmware_loader code that did not have SPDX identifiers on them, so fix that up. Cc: Luis Chamberlain <mcgrof@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-04-04drivers: base: test: add proper SPDX identifier to MakefileGreg Kroah-Hartman
The Makefile in the drivers/base/test/ directory did not have a SPDX identifier on it, so fix that up. Cc: "Rafael J. Wysocki" <rafael@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-04-04arch_topology: Make cpu_capacity sysfs node as read-onlyLingutla Chandrasekhar
If user updates any cpu's cpu_capacity, then the new value is going to be applied to all its online sibling cpus. But this need not to be correct always, as sibling cpus (in ARM, same micro architecture cpus) would have different cpu_capacity with different performance characteristics. So, updating the user supplied cpu_capacity to all cpu siblings is not correct. And another problem is, current code assumes that 'all cpus in a cluster or with same package_id (core_siblings), would have same cpu_capacity'. But with commit '5bdd2b3f0f8 ("arm64: topology: add support to remove cpu topology sibling masks")', when a cpu hotplugged out, the cpu information gets cleared in its sibling cpus. So, user supplied cpu_capacity would be applied to only online sibling cpus at the time. After that, if any cpu hotplugged in, it would have different cpu_capacity than its siblings, which breaks the above assumption. So, instead of mucking around the core sibling mask for user supplied value, use device-tree to set cpu capacity. And make the cpu_capacity node as read-only to know the asymmetry between cpus in the system. While at it, remove cpu_scale_mutex usage, which used for sysfs write protection. Tested-by: Dietmar Eggemann <dietmar.eggemann@arm.com> Tested-by: Quentin Perret <quentin.perret@arm.com> Reviewed-by: Quentin Perret <quentin.perret@arm.com> Acked-by: Sudeep Holla <sudeep.holla@arm.com> Signed-off-by: Lingutla Chandrasekhar <clingutla@codeaurora.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-04-04acpi/hmat: Register memory side cache attributesKeith Busch
Register memory side cache attributes with the memory's node if HMAT provides the side cache iniformation table. Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Signed-off-by: Keith Busch <keith.busch@intel.com> Tested-by: Brice Goglin <Brice.Goglin@inria.fr> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-04-04acpi/hmat: Register performance attributesKeith Busch
Save the best performance access attributes and register these with the memory's node if HMAT provides the locality table. While HMAT does make it possible to know performance for all possible initiator-target pairings, we export only the local pairings at this time. Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Signed-off-by: Keith Busch <keith.busch@intel.com> Tested-by: Brice Goglin <Brice.Goglin@inria.fr> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-04-04acpi/hmat: Register processor domain to its memoryKeith Busch
If the HMAT Subsystem Address Range provides a valid processor proximity domain for a memory domain, or a processor domain matches the performance access of the valid processor proximity domain, register the memory target with that initiator so this relationship will be visible under the node's sysfs directory. Since HMAT requires valid address ranges have an equivalent SRAT entry, verify each memory target satisfies this requirement. Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Signed-off-by: Keith Busch <keith.busch@intel.com> Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Reviewed-by: Brice Goglin <Brice.Goglin@inria.fr> Tested-by: Brice Goglin <Brice.Goglin@inria.fr> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-04-04node: Add memory-side caching attributesKeith Busch
System memory may have caches to help improve access speed to frequently requested address ranges. While the system provided cache is transparent to the software accessing these memory ranges, applications can optimize their own access based on cache attributes. Provide a new API for the kernel to register these memory-side caches under the memory node that provides it. The new sysfs representation is modeled from the existing cpu cacheinfo attributes, as seen from /sys/devices/system/cpu/<cpu>/cache/. Unlike CPU cacheinfo though, the node cache level is reported from the view of the memory. A higher level number is nearer to the CPU, while lower levels are closer to the last level memory. The exported attributes are the cache size, the line size, associativity indexing, and write back policy, and add the attributes for the system memory caches to sysfs stable documentation. Signed-off-by: Keith Busch <keith.busch@intel.com> Reviewed-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Reviewed-by: Brice Goglin <Brice.Goglin@inria.fr> Tested-by: Brice Goglin <Brice.Goglin@inria.fr> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-04-04node: Add heterogenous memory access attributesKeith Busch
Heterogeneous memory systems provide memory nodes with different latency and bandwidth performance attributes. Provide a new kernel interface for subsystems to register the attributes under the memory target node's initiator access class. If the system provides this information, applications may query these attributes when deciding which node to request memory. The following example shows the new sysfs hierarchy for a node exporting performance attributes: # tree -P "read*|write*"/sys/devices/system/node/nodeY/accessZ/initiators/ /sys/devices/system/node/nodeY/accessZ/initiators/ |-- read_bandwidth |-- read_latency |-- write_bandwidth `-- write_latency The bandwidth is exported as MB/s and latency is reported in nanoseconds. The values are taken from the platform as reported by the manufacturer. Memory accesses from an initiator node that is not one of the memory's access "Z" initiator nodes linked in the same directory may observe different performance than reported here. When a subsystem makes use of this interface, initiators of a different access number may not have the same performance relative to initiators in other access numbers, or omitted from the any access class' initiators. Descriptions for memory access initiator performance access attributes are added to sysfs stable documentation. Acked-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Tested-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Signed-off-by: Keith Busch <keith.busch@intel.com> Reviewed-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Tested-by: Brice Goglin <Brice.Goglin@inria.fr> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-04-04node: Link memory nodes to their compute nodesKeith Busch
Systems may be constructed with various specialized nodes. Some nodes may provide memory, some provide compute devices that access and use that memory, and others may provide both. Nodes that provide memory are referred to as memory targets, and nodes that can initiate memory access are referred to as memory initiators. Memory targets will often have varying access characteristics from different initiators, and platforms may have ways to express those relationships. In preparation for these systems, provide interfaces for the kernel to export the memory relationship among different nodes memory targets and their initiators with symlinks to each other. If a system provides access locality for each initiator-target pair, nodes may be grouped into ranked access classes relative to other nodes. The new interface allows a subsystem to register relationships of varying classes if available and desired to be exported. A memory initiator may have multiple memory targets in the same access class. The target memory's initiators in a given class indicate the nodes access characteristics share the same performance relative to other linked initiator nodes. Each target within an initiator's access class, though, do not necessarily perform the same as each other. A memory target node may have multiple memory initiators. All linked initiators in a target's class have the same access characteristics to that target. The following example show the nodes' new sysfs hierarchy for a memory target node 'Y' with access class 0 from initiator node 'X': # symlinks -v /sys/devices/system/node/nodeX/access0/ relative: /sys/devices/system/node/nodeX/access0/targets/nodeY -> ../../nodeY # symlinks -v /sys/devices/system/node/nodeY/access0/ relative: /sys/devices/system/node/nodeY/access0/initiators/nodeX -> ../../nodeX The new attributes are added to the sysfs stable documentation. Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Signed-off-by: Keith Busch <keith.busch@intel.com> Reviewed-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Tested-by: Brice Goglin <Brice.Goglin@inria.fr> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-04-04acpi/hmat: Parse and report heterogeneous memoryKeith Busch
Systems may provide different memory types and export this information in the ACPI Heterogeneous Memory Attribute Table (HMAT). Parse these tables provided by the platform and report the memory access and caching attributes to the kernel messages. Reviewed-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Acked-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Tested-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Signed-off-by: Keith Busch <keith.busch@intel.com> Tested-by: Brice Goglin <Brice.Goglin@inria.fr> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-04-04acpi: Add HMAT to generic parsing tablesKeith Busch
The Heterogeneous Memory Attribute Table (HMAT) header has different field lengths than the existing parsing uses. Add the HMAT type to the parsing rules so it may be generically parsed. Reviewed-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Acked-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Tested-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Signed-off-by: Keith Busch <keith.busch@intel.com> Tested-by: Brice Goglin <Brice.Goglin@inria.fr> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-04-04acpi: Create subtable parsing infrastructureKeith Busch
Parsing entries in an ACPI table had assumed a generic header structure. There is no standard ACPI header, though, so less common layouts with different field sizes required custom parsers to go through their subtable entry list. Create the infrastructure for adding different table types so parsing the entries array may be more reused for all ACPI system tables and the common code doesn't need to be duplicated. Reviewed-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Acked-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Tested-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Signed-off-by: Keith Busch <keith.busch@intel.com> Tested-by: Brice Goglin <Brice.Goglin@inria.fr> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-04-01driver: base: Disable CONFIG_UEVENT_HELPER by defaultGeert Uytterhoeven
Since commit 7934779a69f1184f ("Driver-Core: disable /sbin/hotplug by default"), the help text for the /sbin/hotplug fork-bomb says "This should not be used today [...] creates a high system load, or [...] out-of-memory situations during bootup". The rationale for this was that no recent mainstream system used this anymore (in 2010!). A few years later, the complete uevent helper support was made optional in commit 86d56134f1b67d0c ("kobject: Make support for uevent_helper optional."). However, if was still left enabled by default, to support ancient userland. Time passed by, and nothing should use this anymore, so it can be disabled by default. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-03-31Merge tag 'dmaengine-fix-5.1-rc3' of ↵Linus Torvalds
git://git.infradead.org/users/vkoul/slave-dma Pull dmaengine fixes from Vinod Koul: - Revert "dmaengine: stm32-mdma: Add a check on read_u32_array" as that caused regression - Fix MAINTAINER file uniphier-mdmac.c file path * tag 'dmaengine-fix-5.1-rc3' of git://git.infradead.org/users/vkoul/slave-dma: MAINTAINERS: Fix uniphier-mdmac.c file path dmaengine: stm32-mdma: Revert "dmaengine: stm32-mdma: Add a check on read_u32_array"
2019-03-30Merge tag 'led-fixes-for-5.1-rc3' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/j.anaszewski/linux-leds Pull LED fixes from Jacek Anaszewski: - fix refcnt leak on interface rename - use memcpy in device_name_store() to avoid including garbage from a previous, longer value in the device_name - fix a potential NULL pointer dereference in case of_match_device() cannot find a match * tag 'led-fixes-for-5.1-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/j.anaszewski/linux-leds: leds: trigger: netdev: use memcpy in device_name_store leds: pca9532: fix a potential NULL pointer dereference leds: trigger: netdev: fix refcnt leak on interface rename
2019-03-30Merge tag 'gpio-v5.1-2' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio Pull GPIO fixes from Linus Walleij: "As you can see [in the git history] I was away on leave and Bartosz kindly stepped in and collected a slew of fixes, I pulled them into my tree in two sets and merged some two more fixes (fixing my own caused bugs) on top. Summary: - Revert the extended use of gpio_set_config() and think about how we can do this properly. - Fix up the SPI CS GPIO handling so it now works properly on the SPI bus children, as intended. - Error paths and driver fixes" * tag 'gpio-v5.1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio: gpio: mockup: use simple_read_from_buffer() in debugfs read callback gpio: of: Fix of_gpiochip_add() error path gpio: of: Check for "spi-cs-high" in child instead of parent node gpio: of: Check propname before applying "cs-gpios" quirks gpio: mockup: fix debugfs read Revert "gpio: use new gpio_set_config() helper in more places" gpio: aspeed: fix a potential NULL pointer dereference gpio: amd-fch: Fix bogus SPDX identifier gpio: adnp: Fix testing wrong value in adnp_gpio_direction_input gpio: exar: add a check for the return value of ida_simple_get fails
2019-03-30leds: trigger: netdev: use memcpy in device_name_storeRasmus Villemoes
If userspace doesn't end the input with a newline (which can easily happen if the write happens from a C program that does write(fd, iface, strlen(iface))), we may end up including garbage from a previous, longer value in the device_name. For example # cat device_name # printf 'eth12' > device_name # cat device_name eth12 # printf 'eth3' > device_name # cat device_name eth32 I highly doubt anybody is relying on this behaviour, so switch to simply copying the bytes (we've already checked that size is < IFNAMSIZ) and unconditionally zero-terminate it; of course, we also still have to strip a trailing newline. This is also preparation for future patches. Fixes: 06f502f57d0d ("leds: trigger: Introduce a NETDEV trigger") Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk> Acked-by: Pavel Machek <pavel@ucw.cz> Signed-off-by: Jacek Anaszewski <jacek.anaszewski@gmail.com>
2019-03-30leds: pca9532: fix a potential NULL pointer dereferenceKangjie Lu
In case of_match_device cannot find a match, return -EINVAL to avoid NULL pointer dereference. Fixes: fa4191a609f2 ("leds: pca9532: Add device tree support") Signed-off-by: Kangjie Lu <kjlu@umn.edu> Signed-off-by: Jacek Anaszewski <jacek.anaszewski@gmail.com>
2019-03-30Merge tag 'staging-5.1-rc3' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging Pull staging driver fixes from Greg KH: "Here are some small staging driver fixes for 5.1-rc3, and one driver removal. The biggest thing here is the removal of the mt7621-eth driver as a "real" network driver was merged in 5.1-rc1 for this hardware, so this old driver can now be removed. Other than that, there are just a number of small fixes, all resolving reported issues and some potential corner cases for error handling paths. All of these have been in linux-next with no reported issues" * tag 'staging-5.1-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: staging: vt6655: Remove vif check from vnt_interrupt staging: erofs: keep corrupted fs from crashing kernel in erofs_readdir() staging: octeon-ethernet: fix incorrect PHY mode staging: vc04_services: Fix an error code in vchiq_probe() staging: erofs: fix error handling when failed to read compresssed data staging: vt6655: Fix interrupt race condition on device start up. staging: rtlwifi: Fix potential NULL pointer dereference of kzalloc staging: rtl8712: uninitialized memory in read_bbreg_hdl() staging: rtlwifi: rtl8822b: fix to avoid potential NULL pointer dereference staging: rtl8188eu: Fix potential NULL pointer dereference of kcalloc staging, mt7621-pci: fix build without pci support staging: speakup_soft: Fix alternate speech with other synths staging: axis-fifo: add CONFIG_OF dependency staging: olpc_dcon_xo_1: add missing 'const' qualifier staging: comedi: ni_mio_common: Fix divide-by-zero for DIO cmdtest staging: erofs: fix to handle error path of erofs_vmap() staging: mt7621-dts: update ethernet settings. staging: remove mt7621-eth
2019-03-30Merge tag 'tty-5.1-rc3' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty Pull tty/serial fixes from Greg KH: "Here are some small tty and serial driver fixes for 5.1-rc3. Nothing major here, just a number of potential problems fixes for error handling paths, as well as some other minor bugfixes for reported issues with 5.1-rc1. All of these have been in linux-next with no reported issues" * tag 'tty-5.1-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: tty: fix NULL pointer issue when tty_port ops is not set Disable kgdboc failed by echo space to /sys/module/kgdboc/parameters/kgdboc dt-bindings: serial: Add compatible for Mediatek MT8183 tty/serial: atmel: RS485 HD w/DMA: enable RX after TX is stopped tty/serial: atmel: Add is_half_duplex helper serial: sh-sci: Fix setting SCSCR_TIE while transferring data serial: ar933x_uart: Fix build failure with disabled console tty: serial: qcom_geni_serial: Initialize baud in qcom_geni_console_setup sc16is7xx: missing unregister/delete driver on error in sc16is7xx_init() tty: mxs-auart: fix a potential NULL pointer dereference tty: atmel_serial: fix a potential NULL pointer dereference serial: max310x: Fix to avoid potential NULL pointer dereference serial: mvebu-uart: Fix to avoid a potential NULL pointer dereference
2019-03-30Merge tag 'usb-5.1-rc3' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb Pull USB fixes from Greg KH: "Here are some small USB fixes for 5.1-rc3. Nothing major at all here, just a small collection of fixes for reported issues, and potential problems with error handling paths. Also a few new device ids, as normal. All of these have been in linux-next with no reported issues" * tag 'usb-5.1-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (25 commits) USB: serial: option: add Olicard 600 USB: serial: cp210x: add new device id usb: u132-hcd: fix resource leak usb: cdc-acm: fix race during wakeup blocking TX traffic usb: mtu3: fix EXTCON dependency usb: usb251xb: fix to avoid potential NULL pointer dereference usb: core: Try generic PHY_MODE_USB_HOST if usb_phy_roothub_set_mode fails phy: sun4i-usb: Support set_mode to USB_HOST for non-OTG PHYs xhci: Don't let USB3 ports stuck in polling state prevent suspend usb: xhci: dbc: Don't free all memory with spinlock held xhci: Fix port resume done detection for SS ports with LPM enabled USB: serial: mos7720: fix mos_parport refcount imbalance on error path USB: gadget: f_hid: fix deadlock in f_hidg_write() usb: gadget: net2272: Fix net2272_dequeue() usb: gadget: net2280: Fix net2280_dequeue() usb: gadget: net2280: Fix overrun of OUT messages usb: dwc3: pci: add support for Comet Lake PCH ID usb: usb251xb: Remove unnecessary comparison of unsigned integer with >= 0 usb: common: Consider only available nodes for dr_mode usb: typec: tcpm: Try PD-2.0 if sink does not respond to 3.0 source-caps ...
2019-03-30Merge tag 'acpi-5.1-rc3' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull ACPI fix from Rafael Wysocki: "This corrects a previous attempt to make Linux use its own set of ACPI debug flags different from the upstream ACPICA's default (Erik Schmauss)" * tag 'acpi-5.1-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: ACPI: use different default debug value than ACPICA
2019-03-30Merge tag 'pm-5.1-rc3' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull power management fixes from Rafael Wysocki: "These fix CPU base frequency reporting in the intel_pstate driver and a use-after-free in the scpi-cpufreq driver. Specifics: - Fix the ACPI CPPC library to actually follow the specification when decoding the guaranteed performance register information and make the intel_pstate driver to fall back to the nominal frequency when reporting the base frequency if the guaranteed performance register information is not there (Srinivas Pandruvada). - Fix use-after-free in the exit callback of the scpi-cpufreq left after an update during the 5.0 development cycle (Vincent Stehlé)" * tag 'pm-5.1-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: cpufreq: scpi: Fix use after free cpufreq: intel_pstate: Also use CPPC nominal_perf for base_frequency ACPI / CPPC: Fix guaranteed performance handling
2019-03-29Merge branch 'akpm' (patches from Andrew)Linus Torvalds
Merge misc fixes from Andrew Morton: "22 fixes" * emailed patches from Andrew Morton <akpm@linux-foundation.org>: (22 commits) fs/proc/proc_sysctl.c: fix NULL pointer dereference in put_links fs: fs_parser: fix printk format warning checkpatch: add %pt as a valid vsprintf extension mm/migrate.c: add missing flush_dcache_page for non-mapped page migrate drivers/block/zram/zram_drv.c: fix idle/writeback string compare mm/page_isolation.c: fix a wrong flag in set_migratetype_isolate() mm/memory_hotplug.c: fix notification in offline error path ptrace: take into account saved_sigmask in PTRACE{GET,SET}SIGMASK fs/proc/kcore.c: make kcore_modules static include/linux/list.h: fix list_is_first() kernel-doc mm/debug.c: fix __dump_page when mapping->host is not set mm: mempolicy: make mbind() return -EIO when MPOL_MF_STRICT is specified include/linux/hugetlb.h: convert to use vm_fault_t iommu/io-pgtable-arm-v7s: request DMA32 memory, and improve debugging mm: add support for kmem caches in DMA32 zone ocfs2: fix inode bh swapping mixup in ocfs2_reflink_inodes_lock mm/hotplug: fix offline undo_isolate_page_range() fs/open.c: allow opening only regular files during execve() mailmap: add Changbin Du mm/debug.c: add a cast to u64 for atomic64_read() ...
2019-03-29Merge tag 'iommu-fixes-v5.1-rc3' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu Pull IOMMU fixes from Joerg Roedel: - Fix a bug in the AMD IOMMU driver not handling exclusion ranges correctly. In fact the driver did not reserve these ranges for IOVA allocations, so that dma-handles could be allocated in an exclusion range, leading to data corruption. Exclusion ranges have not been used by any firmware up to now, so this issue remained undiscovered for quite some time. - Fix wrong warning messages that the IOMMU core code prints when it tries to allocate the default domain for an iommu group and the driver does not support any of the default domain types (like Intel VT-d). * tag 'iommu-fixes-v5.1-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu: iommu/amd: Reserve exclusion range in iova-domain iommu: Don't print warning when IOMMU driver only supports unmanaged domains
2019-03-29Merge tag 'char-misc-5.1-rc3' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc Pull char/misc driver fixes from Greg KH: "Here are some binder, habanalabs, and vboxguest driver fixes for 5.1-rc3. The Binder fixes resolve some reported issues found by testing, first by the selinux developers, and then earlier today by syzbot. The habanalabs fixes are all minor, resolving a number of tiny things. The vboxguest patches are a bit larger. They resolve the fact that virtual box decided to change their api in their latest release in a way that broke the existing kernel code, despite saying that they were never going to do that. So this is a bit of a "new feature", but is good to get merged so that 5.1 will work with the latest release. The changes are not large and of course virtual box "swears" they will not break this again, but no one is holding their breath here. All of these have been in linux-next for a while with no reported issues" * tag 'char-misc-5.1-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: virt: vbox: Implement passing requestor info to the host for VirtualBox 6.0.x binder: fix race between munmap() and direct reclaim binder: fix BUG_ON found by selinux-testsuite habanalabs: cast to expected type habanalabs: prevent host crash during suspend/resume habanalabs: perform accounting for active CS habanalabs: fix mapping with page size bigger than 4KB habanalabs: complete user context cleanup before hard reset habanalabs: fix bug when mapping very large memory area habanalabs: fix MMU number of pages calculation
2019-03-29Merge tag 'scsi-fixes' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi Pull SCSI fixes from James Bottomley: "Thirteen fixes, seven of which are for IBM fibre channel and three additional for fairly serious bugs in drivers (qla2xxx, mpt3sas, aacraid). Of the three core fixes, the most significant is probably the missed run queue causing an indefinite hang. The others are fixing a potential use after free on device close and silencing an incorrect warning" * tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: scsi: ibmvfc: Clean up transport events scsi: ibmvfc: Byte swap status and error codes when logging scsi: ibmvfc: Add failed PRLI to cmd_status lookup array scsi: ibmvfc: Remove "failed" from logged errors scsi: zfcp: reduce flood of fcrscn1 trace records on multi-element RSCN scsi: zfcp: fix scsi_eh host reset with port_forced ERP for non-NPIV FCP devices scsi: zfcp: fix rport unblock if deleted SCSI devices on Scsi_Host scsi: sd: Quiesce warning if device does not report optimal I/O size scsi: sd: Fix a race between closing an sd device and sd I/O scsi: core: Run queue when state is set to running after being blocked scsi: qla4xxx: fix a potential NULL pointer dereference scsi: aacraid: Insure we don't access PCIe space during AER/EEH scsi: mpt3sas: Fix kernel panic during expander reset
2019-03-29Merge branch 'i2c/for-current' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux Pull i2c fixes from Wolfram Sang: "A new ID for the i801 driver and some Documentation fixes to make it easier for people to find the bindings (which is also a basis for further improvements in that area)" * 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: i2c: wmt: make bindings file name match the driver i2c: sun6i-p2wi: make bindings file name match the driver i2c: stu300: make bindings file name match the driver i2c: mt65xx: make bindings file name match the driver i2c: iop3xx: make bindings file name match the driver i2c: i801: Add support for Intel Comet Lake
2019-03-29Merge tag 'for-linus-20190329' of git://git.kernel.dk/linux-blockLinus Torvalds
Pull block fixes from Jens Axboe: "Small set of fixes that should go into this series. This contains: - compat signal mask fix for io_uring (Arnd) - EAGAIN corner case for direct vs buffered writes for io_uring (Roman) - NVMe pull request from Christoph with various little fixes - sbitmap ws_active fix, which caused a perf regression for shared tags (me) - sbitmap bit ordering fix (Ming) - libata on-stack DMA fix (Raymond)" * tag 'for-linus-20190329' of git://git.kernel.dk/linux-block: nvmet: fix error flow during ns enable nvmet: fix building bvec from sg list nvme-multipath: relax ANA state check nvme-tcp: fix an endianess miss-annotation libata: fix using DMA buffers on stack io_uring: offload write to async worker in case of -EAGAIN sbitmap: order READ/WRITE freed instance and setting clear bit blk-mq: fix sbitmap ws_active for shared tags io_uring: fix big-endian compat signal mask handling blk-mq: update comment for blk_mq_hctx_has_pending() blk-mq: use blk_mq_put_driver_tag() to put tag
2019-03-29Merge tag 'drm-fixes-2019-03-29' of git://anongit.freedesktop.org/drm/drmLinus Torvalds
Pull drm fixes from Dave Airlie: "Weekly fixes roundup, nothing two serious, some usb device regressions are fixed, and i915 GVT has a bigger fix but otherwise not really much happening here. core: - fb bpp check regression fix - release/unplug fix - use after free fixes i915: - fix mmap range checks - fix gvt ppgtt mm LRU list access races - fix selftest error pointer check - fix a macro definition (pre-emptive for potential further backports) - fix one AML SKU ULX status amdgpu: - one variable refresh rate fix udl: - fix EDID reading tegra: - build/warning fixes meson: - cleanup path fixes - TMDS clock filter fix rockchip: - NV12 buffers and scalar fix" * tag 'drm-fixes-2019-03-29' of git://anongit.freedesktop.org/drm/drm: (22 commits) drm/i915/icl: Fix VEBOX mismatch BUG_ON() drm/i915/selftests: Fix an IS_ERR() vs NULL check drm/i915: Mark AML 0x87CA as ULX drm/meson: fix TMDS clock filtering for DMT monitors drm/meson: Uninstall IRQ handler drm/meson: Fix invalid pointer in meson_drv_unbind() drm/udl: Refactor edid retrieving in UDL driver (v2) drm: Fix drm_release() and device unplug drm/fb: avoid setting 0 depth. drm/tegra: vic: Fix implicit function declaration warning drm/tegra: hub: Fix dereference before check drm/i915/icl: Fix the TRANS_DDI_FUNC_CTL2 bitfield macro drm/amd/display: Only allow VRR when vrefresh is within supported range drm/rockchip: vop: reset scale mode when win is disabled drm/vkms: fix use-after-free when drm_gem_handle_create() fails drm/vgem: fix use-after-free when drm_gem_handle_create() fails drm/i915/gvt: Add mutual lock for ppgtt mm LRU list drm/i915/gvt: Only assign ppgtt root at dispatch time drm/i915/gvt: Don't submit request for error workload dispatch drm/i915/gvt: stop scheduling workload when vgpu is inactive ...
2019-03-29drivers/block/zram/zram_drv.c: fix idle/writeback string compareMinchan Kim
Makoto report a below KASAN error: zram does out-of-bounds read. Because strscpy copies from source up to count bytes unconditionally. It could cause out-of-bounds read on next object in slab. To prevent it, use strlcpy which checks source's length automatically. BUG: KASAN: slab-out-of-bounds in strscpy+0x68/0x154 Read of size 8 at addr ffffffc0c3495a00 by task system_server/1314 .. Call trace: strscpy+0x68/0x154 idle_store+0xc4/0x34c dev_attr_store+0x50/0x6c sysfs_kf_write+0x98/0xb4 kernfs_fop_write+0x198/0x260 __vfs_write+0x10c/0x338 vfs_write+0x114/0x238 SyS_write+0xc8/0x168 __sys_trace_return+0x0/0x4 Allocated by task 1314: __kmalloc+0x280/0x318 kernfs_fop_write+0xac/0x260 __vfs_write+0x10c/0x338 vfs_write+0x114/0x238 SyS_write+0xc8/0x168 __sys_trace_return+0x0/0x4 Freed by task 2855: kfree+0x138/0x630 kernfs_put_open_node+0x10c/0x124 kernfs_fop_release+0xd8/0x114 __fput+0x130/0x2a4 ____fput+0x1c/0x28 task_work_run+0x16c/0x1c8 do_notify_resume+0x2bc/0x107c work_pending+0x8/0x10 The buggy address belongs to the object at ffffffc0c3495a00 which belongs to the cache kmalloc-128 of size 128 The buggy address is located 0 bytes inside of 128-byte region [ffffffc0c3495a00, ffffffc0c3495a80) The buggy address belongs to the page: page:ffffffbf030d2500 count:1 mapcount:0 mapping: (null) index:0x0 compound_mapcount: 0 flags: 0x4000000000010200(slab|head) page dumped because: kasan: bad access detected Memory state around the buggy address: ffffffc0c3495900: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffffffc0c3495980: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc >ffffffc0c3495a00: 04 fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ^ ffffffc0c3495a80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffffffc0c3495b00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 Link: http://lkml.kernel.org/r/20190319231911.145968-1-minchan@kernel.org Cc: <stable@vger.kernel.org> [5.0] Signed-off-by: Minchan Kim <minchan@kernel.org> Reported-by: Makoto Wu <makotowu@google.com> Reviewed-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2019-03-29iommu/io-pgtable-arm-v7s: request DMA32 memory, and improve debuggingNicolas Boichat
IOMMUs using ARMv7 short-descriptor format require page tables (level 1 and 2) to be allocated within the first 4GB of RAM, even on 64-bit systems. For level 1/2 pages, ensure GFP_DMA32 is used if CONFIG_ZONE_DMA32 is defined (e.g. on arm64 platforms). For level 2 pages, allocate a slab cache in SLAB_CACHE_DMA32. Note that we do not explicitly pass GFP_DMA[32] to kmem_cache_zalloc, as this is not strictly necessary, and would cause a warning in mm/sl*b.c, as we did not update GFP_SLAB_BUG_MASK. Also, print an error when the physical address does not fit in 32-bit, to make debugging easier in the future. Link: http://lkml.kernel.org/r/20181210011504.122604-3-drinkcat@chromium.org Fixes: ad67f5a6545f ("arm64: replace ZONE_DMA with ZONE_DMA32") Signed-off-by: Nicolas Boichat <drinkcat@chromium.org> Acked-by: Will Deacon <will.deacon@arm.com> Cc: Christoph Hellwig <hch@infradead.org> Cc: Christoph Lameter <cl@linux.com> Cc: David Rientjes <rientjes@google.com> Cc: Hsin-Yi Wang <hsinyi@chromium.org> Cc: Huaisheng Ye <yehs1@lenovo.com> Cc: Joerg Roedel <joro@8bytes.org> Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com> Cc: Matthew Wilcox <willy@infradead.org> Cc: Matthias Brugger <matthias.bgg@gmail.com> Cc: Mel Gorman <mgorman@techsingularity.net> Cc: Michal Hocko <mhocko@suse.com> Cc: Mike Rapoport <rppt@linux.vnet.ibm.com> Cc: Pekka Enberg <penberg@kernel.org> Cc: Robin Murphy <robin.murphy@arm.com> Cc: Sasha Levin <Alexander.Levin@microsoft.com> Cc: Tomasz Figa <tfiga@google.com> Cc: Vlastimil Babka <vbabka@suse.cz> Cc: Yingjoe Chen <yingjoe.chen@mediatek.com> Cc: Yong Wu <yong.wu@mediatek.com> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2019-03-29staging: vt6655: Remove vif check from vnt_interruptMalcolm Priestley
A check for vif is made in vnt_interrupt_work. There is a small chance of leaving interrupt disabled while vif is NULL and the work hasn't been scheduled. Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com> CC: stable@vger.kernel.org # v4.2+ Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-03-29staging: erofs: keep corrupted fs from crashing kernel in erofs_readdir()Gao Xiang
After commit 419d6efc50e9, kernel cannot be crashed in the namei path. However, corrupted nameoff can do harm in the process of readdir for scenerios without dm-verity as well. Fix it now. Fixes: 3aa8ec716e52 ("staging: erofs: add directory operations") Cc: <stable@vger.kernel.org> # 4.19+ Signed-off-by: Gao Xiang <gaoxiang25@huawei.com> Reviewed-by: Chao Yu <yuchao0@huawei.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-03-29iommu/amd: Reserve exclusion range in iova-domainJoerg Roedel
If a device has an exclusion range specified in the IVRS table, this region needs to be reserved in the iova-domain of that device. This hasn't happened until now and can cause data corruption on data transfered with these devices. Treat exclusion ranges as reserved regions in the iommu-core to fix the problem. Fixes: be2a022c0dd0 ('x86, AMD IOMMU: add functions to parse IOMMU memory mapping requirements for devices') Signed-off-by: Joerg Roedel <jroedel@suse.de> Reviewed-by: Gary R Hook <gary.hook@amd.com>
2019-03-29Merge tag 'usb-serial-5.1-rc3' of ↵Greg Kroah-Hartman
https://git.kernel.org/pub/scm/linux/kernel/git/johan/usb-serial into usb-linus Johan writes: USB-serial fixes for 5.1-rc3 Here's a fix for a long-standing refcount issue in the mos7720 parport implementation, and a set of device id updates. All have been in linux-next with no reported issues. Signed-off-by: Johan Hovold <johan@kernel.org> * tag 'usb-serial-5.1-rc3' of https://git.kernel.org/pub/scm/linux/kernel/git/johan/usb-serial: USB: serial: option: add Olicard 600 USB: serial: cp210x: add new device id USB: serial: mos7720: fix mos_parport refcount imbalance on error path USB: serial: option: set driver_info for SIM5218 and compatibles USB: serial: ftdi_sio: add additional NovaTech products USB: serial: option: add support for Quectel EM12
2019-03-29Merge tag 'fixes-for-v5.1-rc2' of ↵Greg Kroah-Hartman
git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb into usb-linus Felipe writes: usb: fixes for v5.1-rc2 One deadlock fix on f_hid. NET2280 got a fix on its dequeue implementation and a fix for overrun of OUT messages. DWC3 learned about another Intel product: Comment Lake PCH. NET2272 got a similar fix to NET2280 on its dequeue implementation. * tag 'fixes-for-v5.1-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb: USB: gadget: f_hid: fix deadlock in f_hidg_write() usb: gadget: net2272: Fix net2272_dequeue() usb: gadget: net2280: Fix net2280_dequeue() usb: gadget: net2280: Fix overrun of OUT messages usb: dwc3: pci: add support for Comet Lake PCH ID
2019-03-29Merge tag 'gpio-v5.1-rc3-fixes-for-linus' of ↵Linus Walleij
git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux into fixes gpio fixes for v5.1-rc3 - fix for a potential NULL-pointer dereference in the aspeed driver - revert of the commit using the new gpio_set_config() when setting debaunce and transitory state config as it caused a regression in the aspeed driver - two fixes for gpio-mockup for debugfs problems introduced in the last merge window
2019-03-29Merge tag 'drm-intel-fixes-2019-03-28' of ↵Dave Airlie
git://anongit.freedesktop.org/drm/drm-intel into drm-fixes drm/i915 fixes for v5.2-rc3: - fix mmap range checks - fix gvt ppgtt mm LRU list access races - fix selftest error pointer check - fix a macro definition (pre-emptive for potential further backports) - fix one AML SKU ULX status Signed-off-by: Dave Airlie <airlied@redhat.com> From: Jani Nikula <jani.nikula@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/87sgv6ao7a.fsf@intel.com
2019-03-29Merge branch 'drm-fixes-5.1' of git://people.freedesktop.org/~agd5f/linux ↵Dave Airlie
into drm-fixes - One freesync/VRR fix. Signed-off-by: Dave Airlie <airlied@redhat.com> From: Alex Deucher <alexdeucher@gmail.com> Link: https://patchwork.freedesktop.org/patch/msgid/20190328033124.26009-1-alexander.deucher@amd.com