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Commit 6381195ad7d0 ("ACPI: power: Rework turning off unused power
resources") caused power resources in unknown state with reference
counters equal to zero to be turned off too, but that caused issues
to appear in the field, so modify the code to only turn off power
resources that are known to be "on".
Link: https://lore.kernel.org/linux-acpi/6faf4b92-78d5-47a4-63df-cc2bab7769d0@molgen.mpg.de/
Fixes: 6381195ad7d0 ("ACPI: power: Rework turning off unused power resources")
Reported-by: Andreas K. Huettel <andreas.huettel@ur.de>
Tested-by: Andreas K. Huettel <andreas.huettel@ur.de>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Cc: 5.14+ <stable@vger.kernel.org> # 5.14+
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During the process of driver probing, the probe function should return < 0
for failure, otherwise, the kernel will treat value > 0 as success.
Signed-off-by: Zheyu Ma <zheyuma97@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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During the process of driver probing, the probe function should return < 0
for failure, otherwise, the kernel will treat value > 0 as success.
Signed-off-by: Zheyu Ma <zheyuma97@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Implement the ->restore() PM operation and set the link to off, which will
force a full reset and restore. This ensures that Host Performance Booster
is reset after suspend-to-disk.
The Host Performance Booster feature caches logical-to-physical mapping
information in the host memory. After suspend-to-disk, such information is
not valid, so a full reset and restore is needed.
A full reset and restore is done if the SPM level is 5 or 6, but not for
other SPM levels, so this change fixes those cases.
A full reset and restore also restores base address registers, so that code
is removed.
Link: https://lore.kernel.org/r/20211018151004.284200-2-adrian.hunter@intel.com
Reviewed-by: Avri Altman <avri.altman@wdc.com>
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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The sgl is freed in the target stack in target_release_cmd_kref() before
calling qlt_free_cmd() but there is an unmap of sgl in qlt_free_cmd() that
causes a panic if sgl is not yet DMA unmapped:
NIP dma_direct_unmap_sg+0xdc/0x180
LR dma_direct_unmap_sg+0xc8/0x180
Call Trace:
ql_dbg_prefix+0x68/0xc0 [qla2xxx] (unreliable)
dma_unmap_sg_attrs+0x54/0xf0
qlt_unmap_sg.part.19+0x54/0x1c0 [qla2xxx]
qlt_free_cmd+0x124/0x1d0 [qla2xxx]
tcm_qla2xxx_release_cmd+0x4c/0xa0 [tcm_qla2xxx]
target_put_sess_cmd+0x198/0x370 [target_core_mod]
transport_generic_free_cmd+0x6c/0x1b0 [target_core_mod]
tcm_qla2xxx_complete_free+0x6c/0x90 [tcm_qla2xxx]
The sgl may be left unmapped in error cases of response sending. For
instance, qlt_rdy_to_xfer() maps sgl and exits when session is being
deleted keeping the sgl mapped.
This patch removes use-after-free of the sgl and ensures that the sgl is
unmapped for any command that was not sent to firmware.
Link: https://lore.kernel.org/r/20211018122650.11846-1-d.bogdanov@yadro.com
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Dmitry Bogdanov <d.bogdanov@yadro.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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Commit 8c0eb596baa5 ("[SCSI] qla2xxx: Fix a memory leak in an error path of
qla2x00_process_els()"), intended to change:
bsg_job->request->msgcode == FC_BSG_HST_ELS_NOLOGIN
to:
bsg_job->request->msgcode != FC_BSG_RPT_ELS
but changed it to:
bsg_job->request->msgcode == FC_BSG_RPT_ELS
instead.
Change the == to a != to avoid leaking the fcport structure or freeing
unallocated memory.
Link: https://lore.kernel.org/r/20211012191834.90306-2-jgu@purestorage.com
Fixes: 8c0eb596baa5 ("[SCSI] qla2xxx: Fix a memory leak in an error path of qla2x00_process_els()")
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Joy Gu <jgu@purestorage.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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The driver probing function should return < 0 for failure, otherwise
kernel will treat value > 0 as success.
Link: https://lore.kernel.org/r/1634522181-31166-1-git-send-email-zheyuma97@gmail.com
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Zheyu Ma <zheyuma97@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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A new warning in clang points out two places in this driver where
boolean expressions are being used with a bitwise OR instead of a
logical one:
drivers/net/ethernet/netronome/nfp/nfp_asm.c:199:20: error: use of bitwise '|' with boolean operands [-Werror,-Wbitwise-instead-of-logical]
reg->src_lmextn = swreg_lmextn(lreg) | swreg_lmextn(rreg);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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drivers/net/ethernet/netronome/nfp/nfp_asm.c:199:20: note: cast one or both operands to int to silence this warning
drivers/net/ethernet/netronome/nfp/nfp_asm.c:280:20: error: use of bitwise '|' with boolean operands [-Werror,-Wbitwise-instead-of-logical]
reg->src_lmextn = swreg_lmextn(lreg) | swreg_lmextn(rreg);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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drivers/net/ethernet/netronome/nfp/nfp_asm.c:280:20: note: cast one or both operands to int to silence this warning
2 errors generated.
The motivation for the warning is that logical operations short circuit
while bitwise operations do not. In this case, it does not seem like
short circuiting is harmful so implement the suggested fix of changing
to a logical operation to fix the warning.
Link: https://github.com/ClangBuiltLinux/linux/issues/1479
Reported-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Link: https://lore.kernel.org/r/20211018193101.2340261-1-nathan@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Until we better understand the stability issues caused by frequent
frequency changes, lets limit them to a618.
Signed-off-by: Rob Clark <robdclark@chromium.org>
Tested-by: John Stultz <john.stultz@linaro.org>
Tested-by: Caleb Connolly <caleb.connolly@linaro.org>
Link: https://lore.kernel.org/r/20211018153627.2787882-1-robdclark@gmail.com
Signed-off-by: Rob Clark <robdclark@chromium.org>
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During the process of driver probing, the probe function should return < 0
for failure, otherwise, the kernel will treat value > 0 as success.
Signed-off-by: Zheyu Ma <zheyuma97@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Fix following coccicheck warning:
./drivers/net/ethernet/mscc/ocelot_vsc7514.c:946:1-33: WARNING: Function
for_each_available_child_of_node should have of_node_put() before goto.
Early exits from for_each_available_child_of_node should decrement the
node reference counter.
Signed-off-by: Wan Jiabing <wanjiabing@vivo.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Fix following coccicheck warning:
./drivers/net/ethernet/microchip/sparx5/s4parx5_main.c:723:1-33: WARNING: Function
for_each_available_child_of_node should have of_node_put() before goto
Early exits from for_each_available_child_of_node should decrement the
node reference counter.
Signed-off-by: Wan Jiabing <wanjiabing@vivo.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Setting ds->num_ports to DSA_MAX_PORTS made DSA core allocate unnecessary
dsa_port's and call mt7530_port_disable for non-existent ports.
Set it to MT7530_NUM_PORTS to fix that, and dsa_is_user_port check in
port_enable/disable is no longer required.
Cc: stable@vger.kernel.org
Signed-off-by: DENG Qingfang <dqfext@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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I compared the register definitions with the D-Link DWR-966
GPL sources and found that the PUAFD field definition was
incorrect. This definition is unused and causes no issues.
Fixes: 14fceff4771e ("net: dsa: Add Lantiq / Intel DSA driver for vrx200")
Signed-off-by: Aleksander Jan Bajkowski <olek2@wp.pl>
Acked-by: Hauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can
Marc Kleine-Budde says:
====================
pull-request: can 2021-10-17
this is a pull request of 11 patches for net/master.
The first 4 patches are by Ziyang Xuan and Zhang Changzhong and fix 1
use after free and 3 standard conformance problems in the j1939 CAN
stack.
The next 2 patches are by Ziyang Xuan and fix 2 concurrency problems
in the ISOTP CAN stack.
Yoshihiro Shimoda's patch for the rcar_can fix suspend/resume on not
running CAN interfaces.
Aswath Govindraju's patch for the m_can driver fixes access for MMIO
devices.
Zheyu Ma contributes a patch for the peak_pci driver to fix a use
after free.
Stephane Grosjean's 2 patches fix CAN error state handling in the
peak_usb driver.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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On i386, the baycom_epp driver wants to inspect X86 CPU features (TSC)
and then act on that data, but that info is not available when running
on UML, so prevent that test and do the default action.
Prevents this build error on UML + i386:
../drivers/net/hamradio/baycom_epp.c: In function ‘epp_bh’:
../drivers/net/hamradio/baycom_epp.c:630:6: error: implicit declaration of function ‘boot_cpu_has’; did you mean ‘get_cpu_mask’? [-Werror=implicit-function-declaration]
if (boot_cpu_has(X86_FEATURE_TSC)) \
^
../drivers/net/hamradio/baycom_epp.c:658:2: note: in expansion of macro ‘GETTICK’
GETTICK(time1);
Fixes: 68f5d3f3b654 ("um: add PCI over virtio emulation driver")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: linux-um@lists.infradead.org
Cc: Jeff Dike <jdike@addtoit.com>
Cc: Richard Weinberger <richard@nod.at>
Cc: Anton Ivanov <anton.ivanov@cambridgegreys.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: Thomas Sailer <t.sailer@alumni.ethz.ch>
Cc: linux-hams@vger.kernel.org
Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal/libata
Pull libata fixes from Damien Le Moal:
"Two fixes for this cycle:
- Fix a null pointer dereference in ahci-platform driver (from Hai)
- Fix uninitialized variables in pata_legacy driver (from Dan)"
* tag 'libata-5.15-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal/libata:
ata: ahci_platform: fix null-ptr-deref in ahci_platform_enable_regulators()
pata_legacy: fix a couple uninitialized variable bugs
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Pull block fixes from Jens Axboe:
"Bigger than usual for this point in time, the majority is fixing some
issues around BDI lifetimes with the move from the request_queue to
the disk in this release. In detail:
- Series on draining fs IO for del_gendisk() (Christoph)
- NVMe pull request via Christoph:
- fix the abort command id (Keith Busch)
- nvme: fix per-namespace chardev deletion (Adam Manzanares)
- brd locking scope fix (Tetsuo)
- BFQ fix (Paolo)"
* tag 'block-5.15-2021-10-17' of git://git.kernel.dk/linux-block:
block, bfq: reset last_bfqq_created on group change
block: warn when putting the final reference on a registered disk
brd: reduce the brd_devices_mutex scope
kyber: avoid q->disk dereferences in trace points
block: keep q_usage_counter in atomic mode after del_gendisk
block: drain file system I/O on del_gendisk
block: split bio_queue_enter from blk_queue_enter
block: factor out a blk_try_enter_queue helper
block: call submit_bio_checks under q_usage_counter
nvme: fix per-namespace chardev deletion
block/rnbd-clt-sysfs: fix a couple uninitialized variable bugs
nvme-pci: Fix abort command id
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Pull virtio fixes from Michael Tsirkin:
"Fixes up some issues in rc5"
* tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost:
vhost-vdpa: Fix the wrong input in config_cb
VDUSE: fix documentation underline warning
Revert "virtio-blk: Add validation for block size in config space"
vhost_vdpa: unset vq irq before freeing irq
virtio: write back F_VERSION_1 before validate
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git://git.kernel.org/pub/scm/linux/kernel/git/ras/ras
Pull EDAC fix from Borislav Petkov:
- Log the "correct" uncorrectable error count in the armada_xp driver
* tag 'edac_urgent_for_v5.15_rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/ras/ras:
EDAC/armada-xp: Fix output of uncorrectable error counter
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull EFI fixes from Borislav Petkov:
"Forwarded from Ard Biesheuvel through the tip tree. Ard will send
stuff directly in the near future.
Low priority fixes but fixes nonetheless:
- update stub diagnostic print that is no longer accurate
- avoid statically allocated buffer for CPER error record decoding
- avoid sleeping on the efi_runtime semaphore when calling the
ResetSystem EFI runtime service"
* tag 'efi-urgent-for-v5.15' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
efi: Change down_interruptible() in virt_efi_reset_system() to down_trylock()
efi/cper: use stack buffer for error record decoding
efi/libstub: Simplify "Exiting bootservices" message
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
Pull driver core fixes from Greg KH:
"Here are some small driver core fixes for 5.15-rc6, all of which have
been in linux-next for a while with no reported issues.
They include:
- kernfs negative dentry bugfix
- simple pm bus fixes to resolve reported issues"
* tag 'driver-core-5.15-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core:
drivers: bus: Delete CONFIG_SIMPLE_PM_BUS
drivers: bus: simple-pm-bus: Add support for probing simple bus only devices
driver core: Reject pointless SYNC_STATE_ONLY device links
kernfs: don't create a negative dentry if inactive node exists
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char/misc driver fixes from Greg KH:
"Here are some small char/misc driver fixes for 5.15-rc6 for reported
issues that include:
- habanalabs driver fixes
- mei driver fixes and new ids
- fpga new device ids
- MAINTAINER file updates for fpga subsystem
- spi module id table additions and fixes
- fastrpc locking fixes
- nvmem driver fix
All of these have been in linux-next for a while with no reported
issues"
* tag 'char-misc-5.15-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
eeprom: 93xx46: fix MODULE_DEVICE_TABLE
nvmem: Fix shift-out-of-bound (UBSAN) with byte size cells
mei: hbm: drop hbm responses on early shutdown
mei: me: add Ice Lake-N device id.
eeprom: 93xx46: Add SPI device ID table
eeprom: at25: Add SPI ID table
misc: HI6421V600_IRQ should depend on HAS_IOMEM
misc: fastrpc: Add missing lock before accessing find_vma()
cb710: avoid NULL pointer subtraction
misc: gehc: Add SPI ID table
MAINTAINERS: Drop outdated FPGA Manager website
MAINTAINERS: Add Hao and Yilun as maintainers
habanalabs: fix resetting args in wait for CS IOCTL
fpga: ice40-spi: Add SPI device ID table
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging
Pull staging and IIO driver fixes from Greg KH:
"Here are a number of small IIO and staging driver fixes for 5.15-rc6.
They include:
- vc04_services bugfix for reported problem
- r8188eu array underflow fix
- iio driver fixes for a lot of tiny reported issues.
All of these have been in linux-next for a while with no reported
issues"
* tag 'staging-5.15-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging:
staging: r8188eu: prevent array underflow in rtw_hal_update_ra_mask()
staging: vc04_services: shut up out-of-range warning
iio: light: opt3001: Fixed timeout error when 0 lux
iio: adis16480: fix devices that do not support sleep mode
iio: mtk-auxadc: fix case IIO_CHAN_INFO_PROCESSED
iio: adis16475: fix deadlock on frequency set
iio: ssp_sensors: add more range checking in ssp_parse_dataframe()
iio: ssp_sensors: fix error code in ssp_print_mcu_debug()
iio: adc: ad7793: Fix IRQ flag
iio: adc: ad7780: Fix IRQ flag
iio: adc: ad7192: Add IRQ flag
iio: adc: aspeed: set driver data when adc probe.
iio: adc: rzg2l_adc: add missing clk_disable_unprepare() in rzg2l_adc_pm_runtime_resume()
iio: adc: max1027: Fix the number of max1X31 channels
iio: adc: max1027: Fix wrong shift with 12-bit devices
iio: adc128s052: Fix the error handling path of 'adc128_probe()'
iio: adc: rzg2l_adc: Fix -EBUSY timeout error return
iio: accel: fxls8962af: return IRQ_HANDLED when fifo is flushed
iio: dac: ti-dac5571: fix an error code in probe()
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
Pull serial driver fix from Greg KH:
"Here is a single 8250 Kconfig fix for 5.15-rc6 that resolves a
regression that showed up in 5.15-rc1. It has been in linux-next for a
while with no reported issues"
* tag 'tty-5.15-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
serial: 8250: allow disabling of Freescale 16550 compile test
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB fixes from Greg KH:
"Here are some small USB fixes that resolve a number of tiny issues.
They include:
- new USB serial driver ids
- xhci driver fixes for a bunch of issues
- musb error path fixes.
All of these have been in linux-next for a while with no reported
issues"
* tag 'usb-5.15-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
usb: musb: dsps: Fix the probe error path
xhci: Enable trust tx length quirk for Fresco FL11 USB controller
xhci: Fix command ring pointer corruption while aborting a command
USB: xhci: dbc: fix tty registration race
xhci: add quirk for host controllers that don't update endpoint DCS
xhci: guard accesses to ep_state in xhci_endpoint_reset()
USB: serial: qcserial: add EM9191 QDL support
USB: serial: option: add Quectel EC200S-CN module support
USB: serial: option: add prod. id for Quectel EG91
USB: serial: option: add Telit LE910Cx composition 0x1204
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git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull input fixes from Dmitry Torokhov:
- a new product ID for the xpad joystick driver
- fixes to resistive-adc-touch and snvs_pwrkey drivers
- a change to touchscreen helpers to make clang happier
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: touchscreen - avoid bitwise vs logical OR warning
Input: xpad - add support for another USB ID of Nacon GC-100
Input: resistive-adc-touch - fix division by zero error on z1 == 0
Input: snvs_pwrkey - add clk handling
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nullity of a pointer
Since alloc_can_err_skb() puts NULL in cf in the case when skb cannot
be allocated and can_change_state() handles the case when cf is NULL,
the test on the nullity of skb is now unnecessary.
Link: https://lore.kernel.org/all/20210929142111.55757-2-s.grosjean@peak-system.com
Signed-off-by: Stephane Grosjean <s.grosjean@peak-system.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
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notification
This corrects the lack of notification of a return to ERROR_ACTIVE
state for USB - CANFD devices from PEAK-System.
Fixes: 0a25e1f4f185 ("can: peak_usb: add support for PEAK new CANFD USB adapters")
Link: https://lore.kernel.org/all/20210929142111.55757-1-s.grosjean@peak-system.com
Cc: stable@vger.kernel.org
Signed-off-by: Stephane Grosjean <s.grosjean@peak-system.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
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When remove the module peek_pci, referencing 'chan' again after
releasing 'dev' will cause UAF.
Fix this by releasing 'dev' later.
The following log reveals it:
[ 35.961814 ] BUG: KASAN: use-after-free in peak_pci_remove+0x16f/0x270 [peak_pci]
[ 35.963414 ] Read of size 8 at addr ffff888136998ee8 by task modprobe/5537
[ 35.965513 ] Call Trace:
[ 35.965718 ] dump_stack_lvl+0xa8/0xd1
[ 35.966028 ] print_address_description+0x87/0x3b0
[ 35.966420 ] kasan_report+0x172/0x1c0
[ 35.966725 ] ? peak_pci_remove+0x16f/0x270 [peak_pci]
[ 35.967137 ] ? trace_irq_enable_rcuidle+0x10/0x170
[ 35.967529 ] ? peak_pci_remove+0x16f/0x270 [peak_pci]
[ 35.967945 ] __asan_report_load8_noabort+0x14/0x20
[ 35.968346 ] peak_pci_remove+0x16f/0x270 [peak_pci]
[ 35.968752 ] pci_device_remove+0xa9/0x250
Fixes: e6d9c80b7ca1 ("can: peak_pci: add support of some new PEAK-System PCI cards")
Link: https://lore.kernel.org/all/1634192913-15639-1-git-send-email-zheyuma97@gmail.com
Cc: stable@vger.kernel.org
Signed-off-by: Zheyu Ma <zheyuma97@gmail.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
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The read and writes from the fifo are from a buffer, with various
fields and data at predefined offsets. So, they should not be done to
the same address(or port) in case of val_count greater than 1.
Therefore, fix this by using iowrite32()/ioread32() instead of
ioread32_rep()/iowrite32_rep().
Also, the write into FIFO must be performed with an offset from the
message ram base address. Therefore, fix the base address to
mram_base.
Fixes: e39381770ec9 ("can: m_can: Disable IRQs on FIFO bus errors")
Link: https://lore.kernel.org/all/20210920123344.2320-1-a-govindraju@ti.com
Signed-off-by: Aswath Govindraju <a-govindraju@ti.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
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If the driver was not opened, rcar_can_suspend() should not call
clk_disable() because the clock was not enabled.
Fixes: fd1159318e55 ("can: add Renesas R-Car CAN driver")
Link: https://lore.kernel.org/all/20210924075556.223685-1-yoshihiro.shimoda.uh@renesas.com
Cc: stable@vger.kernel.org
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Tested-by: Ayumi Nakamichi <ayumi.nakamichi.kf@renesas.com>
Reviewed-by: Ulrich Hecht <uli+renesas@fpond.eu>
Tested-by: Biju Das <biju.das.jz@bp.renesas.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
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As with commit 8b52d8be86d72308 ("loop: reorder loop_exit"),
unregister_blkdev() needs to be called first in order to avoid calling
brd_alloc() from brd_probe() after brd_del_one() from brd_exit(). Then,
we can avoid holding global mutex during add_disk()/del_gendisk() as with
commit 1c500ad706383f1a ("loop: reduce the loop_ctl_mutex scope").
Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/e205f13d-18ff-a49c-0988-7de6ea5ff823@i-love.sakura.ne.jp
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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After commit ed4246d37f3b ("scsi: sd: REQUEST SENSE for
BLIST_IGN_MEDIA_CHANGE devices in runtime_resume()"), the following crash
was observed.
static int sd_resume_runtime(struct device *dev)
{
struct scsi_disk *sdkp = dev_get_drvdata(dev);
struct scsi_device *sdp = sdkp->device; // sdkp == NULL and crash
if (sdp->ignore_media_change) {
...
}
It is possible for sdkp to be NULL in sd_resume_runtime(). To fix this
crash, follow sd_resume() to test if sdkp is NULL before dereferencing it.
Crash:
[ 4.695171][ T151] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000008
[ 4.696591][ T151] Mem abort info:
[ 4.697919][ T151] ESR = 0x96000005
[ 4.699692][ T151] EC = 0x25: DABT (current EL), IL = 32 bits
[ 4.701990][ T151] SET = 0, FnV = 0
[ 4.702513][ T151] EA = 0, S1PTW = 0
[ 4.704431][ T151] FSC = 0x05: level 1 translation fault
[ 4.705254][ T151] Data abort info:
[ 4.705806][ T151] ISV = 0, ISS = 0x00000005
[ 4.706484][ T151] CM = 0, WnR = 0
[ 4.707048][ T151] [0000000000000008] user address but active_mm is swapper
[ 4.710577][ T151] Internal error: Oops: 96000005 [#1] PREEMPT SMP
[ 4.832361][ T151] Kernel Offset: 0x12acc80000 from 0xffffffc010000000
[ 4.833254][ T151] PHYS_OFFSET: 0x40000000
[ 4.833814][ T151] pstate: 80400005 (Nzcv daif +PAN -UAO)
[ 4.834546][ T151] pc : sd_resume_runtime+0x20/0x14c
[ 4.835227][ T151] lr : scsi_runtime_resume+0x84/0xe4
[ 4.835916][ T151] sp : ffffffc0110db8d0
[ 4.836450][ T151] x29: ffffffc0110db8d0 x28: 0000000000000001
[ 4.837258][ T151] x27: ffffff80c0bd1ac0 x26: ffffff80c0bd1ad0
[ 4.838063][ T151] x25: ffffff80cea7e448 x24: ffffffd2bf961000
[ 4.838867][ T151] x23: ffffffd2be69f838 x22: ffffffd2bd9dfb4c
[ 4.839670][ T151] x21: 0000000000000000 x20: ffffff80cea7e000
[ 4.840474][ T151] x19: ffffff80cea7e260 x18: ffffffc0110dd078
[ 4.841277][ T151] x17: 00000000658783d9 x16: 0000000051469dac
[ 4.842081][ T151] x15: 00000000b87f6327 x14: 0000000068fd680d
[ 4.842885][ T151] x13: ffffff80c0bd2470 x12: ffffffd2bfa7f5f0
[ 4.843688][ T151] x11: 0000000000000078 x10: 0000000000000001
[ 4.844492][ T151] x9 : 00000000000000b1 x8 : ffffffd2be69f88c
[ 4.845295][ T151] x7 : ffffffd2bd9e0e5c x6 : 0000000000000000
[ 4.846099][ T151] x5 : 0000000000000080 x4 : 0000000000000001
[ 4.846902][ T151] x3 : 68fd680dfe4ebe5e x2 : 0000000000000003
[ 4.847706][ T151] x1 : ffffffd2bf7f9380 x0 : ffffff80cea7e260
[ 4.856708][ T151] die+0x16c/0x59c
[ 4.857191][ T151] __do_kernel_fault+0x1e8/0x210
[ 4.857833][ T151] do_page_fault+0xa4/0x654
[ 4.858418][ T151] do_translation_fault+0x6c/0x1b0
[ 4.859083][ T151] do_mem_abort+0x68/0x10c
[ 4.859655][ T151] el1_abort+0x40/0x64
[ 4.860182][ T151] el1h_64_sync_handler+0x54/0x88
[ 4.860834][ T151] el1h_64_sync+0x7c/0x80
[ 4.861395][ T151] sd_resume_runtime+0x20/0x14c
[ 4.862025][ T151] scsi_runtime_resume+0x84/0xe4
[ 4.862667][ T151] __rpm_callback+0x1f4/0x8cc
[ 4.863275][ T151] rpm_resume+0x7e8/0xaa4
[ 4.863836][ T151] __pm_runtime_resume+0xa0/0x110
[ 4.864489][ T151] sd_probe+0x30/0x428
[ 4.865016][ T151] really_probe+0x14c/0x500
[ 4.865602][ T151] __driver_probe_device+0xb4/0x18c
[ 4.866278][ T151] driver_probe_device+0x60/0x2c4
[ 4.866931][ T151] __device_attach_driver+0x228/0x2bc
[ 4.867630][ T151] __device_attach_async_helper+0x154/0x21c
[ 4.868398][ T151] async_run_entry_fn+0x5c/0x1c4
[ 4.869038][ T151] process_one_work+0x3ac/0x590
[ 4.869670][ T151] worker_thread+0x320/0x758
[ 4.870265][ T151] kthread+0x2e8/0x35c
[ 4.870792][ T151] ret_from_fork+0x10/0x20
Link: https://lore.kernel.org/r/20211015074654.19615-1-miles.chen@mediatek.com
Fixes: ed4246d37f3b ("scsi: sd: REQUEST SENSE for BLIST_IGN_MEDIA_CHANGE devices in runtime_resume()")
Cc: Stanley Chu <stanley.chu@mediatek.com>
Reviewed-by: Martin Kepplinger <martin.kepplinger@puri.sm>
Reviewed-by: Stanley Chu <stanley.chu@mediatek.com>
Signed-off-by: Miles Chen <miles.chen@mediatek.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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When scanning devices through the 'scan' attribute in sysfs, the user will
observe duplicate device entries in lsscsi command output.
Set the shost's max_channel to zero to avoid this.
Link: https://lore.kernel.org/r/20211014055425.30719-1-sreekanth.reddy@broadcom.com
Fixes: 824a156633df ("scsi: mpi3mr: Base driver code")
Signed-off-by: Sreekanth Reddy <sreekanth.reddy@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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Some systems such as the Microsoft Surface Laptop 4 leave interrupts
enabled and configured for use in sleep states on boot, which cause
unexpected behaviour such as spurious wakes and failed resumes in
s2idle states.
As interrupts should not be enabled until they are claimed and
explicitly enabled, disabling any interrupts mistakenly left enabled by
firmware should be safe.
Signed-off-by: Sachi King <nakato@nakato.io>
Link: https://lore.kernel.org/r/20211009033240.21543-1-nakato@nakato.io
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux
Pull clk driver fixes from Stephen Boyd:
"Clk driver fixes for critical issues found in the past few weeks:
- Select gdsc config so qcom sm6350 driver probes
- Fix a register offset in qcom gcc-sm6115 so the correct clk is
controlled
- Fix inverted logic in Renesas RZ/G2L .is_enabled()
- Mark some more clks critical in Renesas clk driver
- Remove a duplicate clk in the agilex driver"
* tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux:
clk: qcom: add select QCOM_GDSC for SM6350
clk: qcom: gcc-sm6115: Fix offset for hlos1_vote_turing_mmu_tbu0_gdsc
clk: socfpga: agilex: fix duplicate s2f_user0_clk
clk: renesas: rzg2l: Fix clk status function
clk: renesas: r9a07g044: Mark IA55_CLK and DMAC_ACLK critical
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git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm
Pull device mapper fixes from Mike Snitzer:
- Fix DM verity target to skip redundant processing on I/O errors.
- Fix request-based DM so that it doesn't queue request to blk-mq when
DM device is suspended.
- Fix DM core mempool NULL pointer race when completing IO.
- Make DM clone target's 'descs' array static.
* tag 'for-5.15/dm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm:
dm: fix mempool NULL pointer race when completing IO
dm rq: don't queue request to blk-mq during DM suspend
dm clone: make array 'descs' static
dm verity: skip redundant verity_handle_err() on I/O errors
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git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull ARM SoC fixes from Arnd Bergmann:
"A small number fixes this time, mostly touching actual code:
- Add platform device for i.MX System Reset Controller (SRC) to
fix a regression caused by fw_devlink change
- A fixup for a boot regression caused by my own rework for the
Qualcomm SCM driver
- Multiple bugfixes for the Arm FFA and optee firmware drivers,
addressing problems when they are built as a loadable module
- Four dts bugfixes for the Broadcom SoC used in Raspberry pi,
addressing VEC (video encoder), MDIO bus controller
#address-cells/#size-cells, SDIO voltage and PCIe host bridge
dtc warnings"
* tag 'arm-soc-fixes-5.15-2' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc:
ARM: imx: register reset controller from a platform driver
iommu/arm: fix ARM_SMMU_QCOM compilation
ARM: dts: bcm2711-rpi-4-b: Fix usb's unit address
ARM: dts: bcm2711-rpi-4-b: Fix pcie0's unit address formatting
tee: optee: Fix missing devices unregister during optee_remove
ARM: dts: bcm2711-rpi-4-b: fix sd_io_1v8_reg regulator states
ARM: dts: bcm2711: fix MDIO #address- and #size-cells
ARM: dts: bcm283x: Fix VEC address for BCM2711
firmware: arm_ffa: Fix __ffa_devices_unregister
firmware: arm_ffa: Add missing remove callback to ffa_bus_type
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git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci
Pull pci fix from Bjorn Helgaas:
- Don't save msi_populate_sysfs() error code as dev->msi_irq_groups so
we don't dereference the error code as a pointer (Wang Hai)
* tag 'pci-v5.15-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci:
PCI/MSI: Handle msi_populate_sysfs() errors correctly
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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull ACPI fix from Rafael Wysocki:
"Add a missing device ID to a quirk list in the suspend-to-idle support
code"
* tag 'acpi-5.15-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
ACPI: PM: Include alternate AMDI0005 id in special behaviour
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A new warning in clang points out a few places in this driver where a
bitwise OR is being used with boolean types:
drivers/input/touchscreen.c:81:17: warning: use of bitwise '|' with boolean operands [-Wbitwise-instead-of-logical]
data_present = touchscreen_get_prop_u32(dev, "touchscreen-min-x",
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
This use of a bitwise OR is intentional, as bitwise operations do not
short circuit, which allows all the calls to touchscreen_get_prop_u32()
to happen so that the last parameter is initialized while coalescing the
results of the calls to make a decision after they are all evaluated.
To make this clearer to the compiler, use the '|=' operator to assign
the result of each touchscreen_get_prop_u32() call to data_present,
which keeps the meaning of the code the same but makes it obvious that
every one of these calls is expected to happen.
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Reported-by: Nick Desaulniers <ndesaulniers@google.com>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Link: https://lore.kernel.org/r/20211014205757.3474635-1-nathan@kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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The Nacon GX100XF is already mapped, but it seems there is a Nacon
GC-100 (identified as NC5136Wht PCGC-100WHITE though I believe other
colours exist) with a different USB ID when in XInput mode.
Signed-off-by: Michael Cullen <michael@michaelcullen.name>
Link: https://lore.kernel.org/r/20211015192051.5196-1-michael@michaelcullen.name
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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For proper pressure calculation we need at least x and z1 to be non
zero. Even worse, in case z1 we may run in to division by zero
error.
Fixes: 60b7db914ddd ("Input: resistive-adc-touch - rework mapping of channels")
Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Link: https://lore.kernel.org/r/20211007095727.29579-1-o.rempel@pengutronix.de
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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On i.MX7S and i.MX8M* (but not i.MX6*) the pwrkey device has an
associated clock. Accessing the registers requires that this clock is
enabled. Binding the driver on at least i.MX7S and i.MX8MP while not
having the clock enabled results in a complete hang of the machine.
(This usually only happens if snvs_pwrkey is built as a module and the
rtc-snvs driver isn't already bound because at bootup the required clk
is on and only gets disabled when the clk framework disables unused clks
late during boot.)
This completes the fix in commit 135be16d3505 ("ARM: dts: imx7s: add
snvs clock to pwrkey").
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20211013062848.2667192-1-u.kleine-koenig@pengutronix.de
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/net-queue
Tony Nguyen says:
====================
Intel Wired LAN Driver Updates 2021-10-14
Brett ensures RDMA nodes are removed during release and rebuild. He also
corrects fw.mgmt.api to include the patch number for proper
identification.
Dave stops ida_free() being called when an IDA has not been allocated.
Michal corrects the order of parameters being provided and the number of
entries skipped for UDP tunnels.
====================
Link: https://lore.kernel.org/r/20211014181953.3538330-1-anthony.l.nguyen@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux
Pull gpio fixes from Bartosz Golaszewski:
- fix module autoloading on gpio-74x164 after a revert of OF modaliases
- fix problems with the bias setting in gpio-pca953x
- fix a use-after-free bug in gpio-mockup by using software nodes
* tag 'gpio-fixes-for-v5.15-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux:
gpio: mockup: Convert to use software nodes
gpio: pca953x: Improve bias setting
gpio: 74x164: Add SPI device ID table
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git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi
Pull spi fixes from Mark Brown:
"A few small fixes.
Mostly driver specific but there's one in the core which fixes a
deadlock when adding devices on spi-mux that's triggered because
spi-mux is a SPI device which is itself a SPI controller and so can
instantiate devices when registered.
We were using a global lock to protect against reusing chip selects
but they're a per controller thing so moving the lock per controller
resolves that"
* tag 'spi-fix-v5.15-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi:
spi-mux: Fix false-positive lockdep splats
spi: Fix deadlock when adding SPI controllers on SPI buses
spi: bcm-qspi: clear MSPI spifie interrupt during probe
spi: spi-nxp-fspi: don't depend on a specific node name erratum workaround
spi: mediatek: skip delays if they are 0
spi: atmel: Fix PDC transfer setup bug
spi: spidev: Add SPI ID table
spi: Use 'flash' node name instead of 'spi-flash' in example
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git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux
Pull mtd fix from Miquel Raynal:
"Raw NAND controller driver fix:
- Qcom: Update code word value for raw reads (QPIC v2+)"
* tag 'mtd/fixes-for-5.15-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux:
mtd: rawnand: qcom: Update code word value for raw read
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Pull drm fixes from Dave Airlie:
"It has a few scattered msm and i915 fixes, a few core fixes and a
mediatek feature revert.
I've had to pick a bunch of patches into this, as the drm-misc-fixes
tree had a bunch of vc4 patches I wasn't comfortable with sending to
you at least as part of this, they were delayed due to your reverts.
If it's really useful as fixes I'll do a separate pull.
Summary:
Core:
- clamp fbdev size
- edid cap blocks read to avoid out of bounds
panel:
- fix missing crc32 dependency
msm:
- Fix a new crash on dev file close if the dev file was opened when
GPU is not loaded (such as missing fw in initrd)
- Switch to single drm_sched_entity per priority level per drm_file
to unbreak multi-context userspace
- Serialize GMU access to fix GMU OOB errors
- Various error path fixes
- A couple integer overflow fixes
- Fix mdp5 cursor plane WARNs
i915:
- Fix ACPI object leak
- Fix context leak in user proto-context creation
- Fix missing i915_sw_fence_fini call
hyperv:
- hide hw pointer
nouveau:
- fix engine selection bit
r128:
- fix UML build
rcar-du:
- unconncted LVDS regression fix
mediatek:
- revert CMDQ refinement patches"
* tag 'drm-fixes-2021-10-15-1' of git://anongit.freedesktop.org/drm/drm: (34 commits)
drm/panel: olimex-lcd-olinuxino: select CRC32
drm/r128: fix build for UML
drm/nouveau/fifo: Reinstate the correct engine bit programming
drm/hyperv: Fix double mouse pointers
drm/fbdev: Clamp fbdev surface size if too large
drm/edid: In connector_bad_edid() cap num_of_ext by num_blocks read
drm/i915: Free the returned object of acpi_evaluate_dsm()
drm/i915: Fix bug in user proto-context creation that leaked contexts
drm: rcar-du: Don't create encoder for unconnected LVDS outputs
drm/msm/dsi: fix off by one in dsi_bus_clk_enable error handling
drm/msm/dsi: Fix an error code in msm_dsi_modeset_init()
drm/msm/dsi: dsi_phy_14nm: Take ready-bit into account in poll_for_ready
drm/msm/dsi/phy: fix clock names in 28nm_8960 phy
drm/msm/dpu: Fix address of SM8150 PINGPONG5 IRQ register
drm/msm: Do not run snapshot on non-DPU devices
drm/msm/a3xx: fix error handling in a3xx_gpu_init()
drm/msm/a4xx: fix error handling in a4xx_gpu_init()
drm/msm: Fix null pointer dereference on pointer edp
drm/msm/mdp5: fix cursor-related warnings
drm/msm: Avoid potential overflow in timeout_to_jiffies()
...
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