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2013-03-31Merge remote-tracking branch 'regmap/fix/async' into tmpMark Brown
2013-03-31Merge remote-tracking branch 'regmap/fix/core' into tmpMark Brown
2013-03-31Merge remote-tracking branch 'regmap/fix/cache' into tmpMark Brown
2013-03-31Merge branch 'fixes' of git://git.infradead.org/users/vkoul/slave-dmaLinus Torvalds
Pull slave-dmaengine fixes from Vinod Koul: "Two fixes for slave-dmaengine. The first one is for making slave_id value correct for dw_dmac and the other one fixes the endieness in DT parsing" * 'fixes' of git://git.infradead.org/users/vkoul/slave-dma: dw_dmac: adjust slave_id accordingly to request line base dmaengine: dw_dma: fix endianess for DT xlate function
2013-03-31Merge branch 'v4l_for_linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media Pull media fixes from Mauro Carvalho Chehab: "For a some fixes for Kernel 3.9: - subsystem build fix when VIDEO_DEV=y, VIDEO_V4L2=m and I2C=m - compilation fix for arm multiarch preventing IR_RX51 to be selected - regression fix at bttv crop logic - s5p-mfc/m5mols/exynos: a few fixes for cameras on exynos hardware" * 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: [media] [REGRESSION] bt8xx: Fix too large height in cropcap [media] fix compilation with both V4L2 and I2C as 'm' [media] m5mols: Fix bug in stream on handler [media] s5p-fimc: Do not attempt to disable not enabled media pipeline [media] s5p-mfc: Fix encoder control 15 issue [media] s5p-mfc: Fix frame skip bug [media] s5p-fimc: send valid m2m ctx to fimc_m2m_job_finish [media] exynos-gsc: send valid m2m ctx to gsc_m2m_job_finish [media] fimc-lite: Fix the variable type to avoid possible crash [media] fimc-lite: Initialize 'step' field in fimc_lite_ctrl structure [media] ir: IR_RX51 only works on OMAP2
2013-03-31Merge tag 'for-linus-20130331' of git://git.kernel.dk/linux-blockLinus Torvalds
Pull block fixes from Jens Axboe: "Alright, this time from 10K up in the air. Collection of fixes that have been queued up since the merge window opened, hence postponed until later in the cycle. The pull request contains: - A bunch of fixes for the xen blk front/back driver. - A round of fixes for the new IBM RamSan driver, fixing various nasty issues. - Fixes for multiple drives from Wei Yongjun, bad handling of return values and wrong pointer math. - A fix for loop properly killing partitions when being detached." * tag 'for-linus-20130331' of git://git.kernel.dk/linux-block: (25 commits) mg_disk: fix error return code in mg_probe() rsxx: remove unused variable rsxx: enable error return of rsxx_eeh_save_issued_dmas() block: removes dynamic allocation on stack Block: blk-flush: Fixed indent code style cciss: fix invalid use of sizeof in cciss_find_cfgtables() loop: cleanup partitions when detaching loop device loop: fix error return code in loop_add() mtip32xx: fix error return code in mtip_pci_probe() xen-blkfront: remove frame list from blk_shadow xen-blkfront: pre-allocate pages for requests xen-blkback: don't store dev_bus_addr xen-blkfront: switch from llist to list xen-blkback: fix foreach_grant_safe to handle empty lists xen-blkfront: replace kmalloc and then memcpy with kmemdup xen-blkback: fix dispatch_rw_block_io() error path rsxx: fix missing unlock on error return in rsxx_eeh_remap_dmas() Adding in EEH support to the IBM FlashSystem 70/80 device driver block: IBM RamSan 70/80 error message bug fix. block: IBM RamSan 70/80 branding changes. ...
2013-03-30macvlan: use the right RCU apiEric Dumazet
Make sure we use proper API to fetch dev->rx_handler_data, instead of ugly casts. Rename macvlan_port_get() to macvlan_port_get_rtnl() to document fact that we hold RTNL when needed, with lockdep support. This removes sparse warnings as well (CONFIG_SPARSE_RCU_POINTER=y) CHECK drivers/net/macvlan.c drivers/net/macvlan.c:706:37: warning: cast removes address space of expression drivers/net/macvlan.c:775:16: warning: cast removes address space of expression drivers/net/macvlan.c:924:16: warning: cast removes address space of expression Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-30cdc_ncm: return -ENOMEM if kzalloc failsDevendra Naga
return -ENOMEM instead if kzalloc of cdc_ncm_ctx structure is failed. and also remove the comparision of ctx structure with NULL and make it as !ctx. Signed-off-by: Devendra Naga <devendra.aaru@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-30Merge git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pendingLinus Torvalds
Pull SCSI target fixes from Nicholas Bellinger: "This includes the bug-fix for a >= v3.8-rc1 regression specific to iscsi-target persistent reservation conflict handling (CC'ed to stable), and a tcm_vhost patch to drop VIRTIO_RING_F_EVENT_IDX usage so that in-flight qemu vhost-scsi-pci device code can detect the proper vhost feature bits. Also, there are two more tcm_vhost patches still being discussed by MST and Asias for v3.9 that will be required for the in-flight qemu vhost-scsi-pci device patch to function properly, and that should (hopefully) be the last target fixes for this round." * git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending: target: Fix RESERVATION_CONFLICT status regression for iscsi-target special case tcm_vhost: Avoid VIRTIO_RING_F_EVENT_IDX feature bit
2013-03-30virtio: console: add locking around c_ovq operationsAmit Shah
When multiple ovq operations are being performed (lots of open/close operations on virtio_console fds), the __send_control_msg() function can get confused without locking. A simple recipe to cause badness is: * create a QEMU VM with two virtio-serial ports * in the guest, do while true;do echo abc >/dev/vport0p1;done while true;do echo edf >/dev/vport0p2;done In one run, this caused a panic in __send_control_msg(). In another, I got virtio_console virtio0: control-o:id 0 is not a head! This also results repeated messages similar to these on the host: qemu-kvm: virtio-serial-bus: Unexpected port id 478762112 for device virtio-serial-bus.0 qemu-kvm: virtio-serial-bus: Unexpected port id 478762368 for device virtio-serial-bus.0 Reported-by: FuXiangChun <xfu@redhat.com> Signed-off-by: Amit Shah <amit.shah@redhat.com> Reviewed-by: Wanlong Gao <gaowanlong@cn.fujitsu.com> Reviewed-by: Asias He <asias@redhat.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Cc: stable@kernel.org
2013-03-30virtio: console: rename cvq_lock to c_ivq_lockAmit Shah
The cvq_lock was taken for the c_ivq. Rename the lock to make that obvious. We'll also add a lock around the c_ovq in the next commit, so there's no ambiguity. Signed-off-by: Amit Shah <amit.shah@redhat.com> Reviewed-by: Asias He <asias@redhat.com> Reviewed-by: Wanlong Gao <gaowanlong@cn.fujitsu.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Cc: stable@kernel.org
2013-03-30dw_dmac: adjust slave_id accordingly to request line baseAndy Shevchenko
On some hardware configurations we have got the request line with the offset. The patch introduces convert_slave_id() helper for that cases. The request line base is came from the driver data provided by the platform_device_id table. Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Cc: Viresh Kumar <viresh.kumar@linaro.org> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2013-03-30dmaengine: dw_dma: fix endianess for DT xlate functionArnd Bergmann
As reported by Wu Fengguang's build robot tracking sparse warnings, the dma_spec arguments in the dw_dma_xlate are already byte swapped on little-endian platforms and must not get swapped again. This code is currently not used anywhere, but will be used in Linux 3.10 when the ARM SPEAr platform starts using the generic DMA DT binding. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Reported-by: Fengguang Wu <fengguang.wu@intel.com> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2013-03-29qlcnic: Bump up the version to 5.2.39Rajesh Borundia
Signed-off-by: Rajesh Borundia <rajesh.borundia@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-29qlcnic: Support atomic commandsRajesh Borundia
o VFs might get scheduled out after sending a command to a PF and scheduled in after receiving a response. Implement a worker thread to handle atomic commands. Signed-off-by: Manish Chopra <manish.chopra@qlogic.com> Signed-off-by: Rajesh Borundia <rajesh.borundia@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-29qlcnic: Support VF-PF communication channel commands.Rajesh Borundia
o Add support for commands from VF to PF. o PF validates the commands sent by the VF before sending it to adapter. o vPort is a container of resources. PF creates vPort for VFs and attach resources to it. vPort is transparent to the VF. o Separate 83xx TX and RX hardware resource cleanup from 82xx. Signed-off-by: Manish Chopra <manish.chopra@qlogic.com> Signed-off-by: Sucheta Chakraborty <sucheta.chakraborty@qlogic.com> Signed-off-by: Rajesh Borundia <rajesh.borundia@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-29qlcnic: VF-PF communication channel implementationRajesh Borundia
o Adapter provides communication channel between VF and PF. Any control commands from the VF driver are sent to the PF driver through this communication channel. PF driver validates the commands before sending them to the adapter. Similarly PF driver forwards any control command responses to the VF driver through this communication channel. Adapter sends message pending event to VF or PF when there is an outstanding response or a command for VF or PF respectively. When a command or a response is sent over a channel VF or PF cannot send another command or a response until adapter sends a channel free event. Adapter allocates 1K area to VF and PF each for this communication. o Commands and responses are encapsulated in a header. Header determines sequence id, number of fragments, fragment number etc. Signed-off-by: Manish Chopra <manish.chopra@qlogic.com> Signed-off-by: Sucheta Chakraborty <sucheta.chakraborty@qlogic.com> Signed-off-by: Rajesh Borundia <rajesh.borundia@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-29qlcnic: Use shared interrupt vector for Tx and RxRajesh Borundia
o VF will use shared MSI-X interrupt vector for Tx and Rx. o When QLCNIC_INTR_SHARED flag is set Tx and Rx will share MSI-X interrupt vector. Tx will use a separate MSI-X interrupt vector from Rx otherwise. Signed-off-by: Rajesh Borundia <rajesh.borundia@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-29qlcnic: SR-IOV VF probeRajesh Borundia
o Add PCI device entry for VF. o Add HW operations for VF. Signed-off-by: Manish Chopra <manish.chopra@qlogic.com> Signed-off-by: Sucheta Chakraborty <sucheta.chakraborty@qlogic.com> Signed-off-by: Rajesh Borundia <rajesh.borundia@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-29qlcnic: Support SR-IOV enable and disableRajesh Borundia
o Add QLCNIC_SRIOV to Kconfig. o Provide PCI sysfs hooks to enable and disable SR-IOV. o Allow enabling only when CONFIG_QLCNIC_SRIOV is defined. o qlcnic_sriov_pf.c has all the PF related SR-IOV functionality. o qlcnic_sriov_common.c has VF functionality and SR-IOV functionality which is common between VF and PF. o qlcnic_sriov.h is a common header file for SR-IOV defines. Signed-off-by: Manish Chopra <manish.chopra@qlogic.com> Signed-off-by: Sucheta Chakraborty <sucheta.chakraborty@qlogic.com> Signed-off-by: Rajesh Borundia <rajesh.borundia@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-29ks8851: Fix interpretation of rxlen field.Max.Nekludov@us.elster.com
According to the Datasheet (page 52): 15-12 Reserved 11-0 RXBC Receive Byte Count This field indicates the present received frame byte size. The code has a bug: rxh = ks8851_rdreg32(ks, KS_RXFHSR); rxstat = rxh & 0xffff; rxlen = rxh >> 16; // BUG!!! 0xFFF mask should be applied Signed-off-by: Max Nekludov <Max.Nekludov@us.elster.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-29cirrus: cs89x0: remove two obsolete Kconfig macrosPaul Bolle
The CONFIG_ARCH_IXDP2X01 and CONFIG_MACH_IXDP2351 Kconfig macros are unused since the ixp23xx and ixp2000 platforms were removed in v3.5. So remove the last code still depending on these macros. And since CS89x0_NONISA_IRQ was only set if either of these two macros was defined we can also remove that macro and the code depending on it. Signed-off-by: Paul Bolle <pebolle@tiscali.nl> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-29atl1e: drop pci-msi support because of packet corruptionHannes Frederic Sowa
Usage of pci-msi results in corrupted dma packet transfers to the host. Reported-by: rebelyouth <rebelyouth.hacklab@gmail.com> Cc: Huang, Xiong <xiong@qca.qualcomm.com> Tested-by: Christian Sünkenberg <christian.suenkenberg@student.kit.edu> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-29sh_eth: add R-Car support for realSergei Shtylyov
Commit d0418bb7123f44b23d69ac349eec7daf9103472f (net: sh_eth: Add eth support for R8A7779 device) was a failed attempt to add support for one of members of the R-Car SoC family. That's for three reasons: it treated R8A7779 the same as SH7724 except including quite dirty hack adding ECMR_ELB bit to the mask in sh_eth_set_rate() while not removing ECMR_RTM bit (despite it's reserved in R-Car Ether), and it didn't add a new register offset array despite the closest SH_ETH_REG_FAST_SH4 mapping differs by 0x200 to the offsets all the R-Car Ether registers have, and also some of the registers in this old mapping don't exist on R-Car Ether (due to this, SH7724's 'sh_eth_my_cpu_data' structure is not adequeate for R-Car too). Fix all these shortcomings, restoring the SH7724 related section to its pristine state... Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-29sh_eth: move data from header file to driverSergei Shtylyov
The driver's header file contains initialized register offset tables which (as any data definitions), of course, have no business being there. Move them to the driver's body, somewhat beautifying the initializers, while at it... Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-29net: calxedaxgmac: Wake-on-LAN fixesRob Herring
WOL is broken because the magic packet status bit is getting set rather than the enable bit. The PMT interrupt is not getting serviced because the PMT interrupt is also enabled on the global interrupt, but not cleared by the global interrupt and the global interrupt is higher priority. This fixes both of these issues to get WOL working. There's still a problem with receive after resume, but at least now we can wake-up. Signed-off-by: Rob Herring <rob.herring@calxeda.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-29net: calxedaxgmac: fix rx ring handling when OOMRob Herring
If skb allocation for the rx ring fails repeatedly, we can reach a point were the ring is empty. In this condition, the driver is out of sync with the h/w. While this has always been possible, the removal of the skb recycling seems to have made triggering this problem easier. Signed-off-by: Rob Herring <rob.herring@calxeda.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-29smsc75xx: fix jumbo frame supportSteve Glendinning
This patch enables RX of jumbo frames for LAN7500. Previously the driver would transmit jumbo frames succesfully but would drop received jumbo frames (incrementing the interface errors count). With this patch applied the device can succesfully receive jumbo frames up to MTU 9000 (9014 bytes on the wire including ethernet header). Signed-off-by: Steve Glendinning <steve.glendinning@shawell.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-29bonding: fix disabling of arp_interval and miimonnikolay@redhat.com
Currently if either arp_interval or miimon is disabled, they both get disabled, and upon disabling they get executed once more which is not the proper behaviour. Also when doing a no-op and disabling an already disabled one, the other again gets disabled. Also fix the error messages with the proper valid ranges, and a small typo fix in the up delay error message (outputting "down delay", instead of "up delay"). Signed-off-by: Nikolay Aleksandrov <nikolay@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-29sky2: Threshold for Pause Packet is set wrongMirko Lindner
The sky2 driver sets the Rx Upper Threshold for Pause Packet generation to a wrong value which leads to only 2kB of RAM remaining space. This can lead to Rx overflow errors even with activated flow-control. Fix: We should increase the value to 8192/8 Signed-off-by: Mirko Lindner <mlindner@marvell.com> Acked-by: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-29sky2: Receive Overflows not countedMirko Lindner
The sky2 driver doesn't count the Receive Overflows because the MAC interrupt for this event is not set in the MAC's interrupt mask. The MAC's interrupt mask is set only for Transmit FIFO Underruns. Fix: The correct setting should be (GM_IS_TX_FF_UR | GM_IS_RX_FF_OR) Otherwise the Receive Overflow event will not generate any interrupt. The Receive Overflow interrupt is handled correctly Signed-off-by: Mirko Lindner <mlindner@marvell.com> Acked-by: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-29Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client Pull ceph fix from Sage Weil: "This fixes a regression introduced during the last merge window when mapping non-existent images." * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client: rbd: don't zero-fill non-image object requests
2013-03-29rbd: don't zero-fill non-image object requestsAlex Elder
A result of ENOENT from a read request for an object that's part of an rbd image indicates that there is a hole in that portion of the image. Similarly, a short read for such an object indicates that the remainder of the read should be interpreted a full read with zeros filling out the end of the request. This behavior is not correct for objects that are not backing rbd image data. Currently rbd_img_obj_request_callback() assumes it should be done for all objects. Change rbd_img_obj_request_callback() so it only does this zeroing for image objects. Encapsulate that special handling in its own function. Add an assertion that the image object request is a bio request, since we assume that (and we currently don't support any other types). This resolves a problem identified here: http://tracker.ceph.com/issues/4559 The regression was introduced by bf0d5f503dc11d6314c0503591d258d60ee9c944. Reported-by: Dan van der Ster <dan@vanderster.com> Signed-off-by: Alex Elder <elder@inktank.com> Reviewed-off-by: Sage Weil <sage@inktank.com>
2013-03-29media: radio-ma901: return ENODEV in probe if usb_device doesn't matchAlexey Klimov
Masterkit MA901 usb radio device shares USB ID with Atmel V-USB devices. This patch adds additional checks in usb_ma901radio_probe() and if product or manufacturer doesn't match we return -ENODEV and don't continue. This allows hid drivers to handle not MA901 device. Signed-off-by: Alexey Klimov <klimov.linux@gmail.com> Acked-by: Mauro Carvalho Chehab <mchehab@redhat.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2013-03-29HID: fix Masterkit MA901 hid quirksAlexey Klimov
This patch reverts commit 0322bd3980 ("usb hid quirks for Masterkit MA901 usb radio") and adds checks in hid_ignore() for Masterkit MA901 usb radio device. This usb radio device shares USB ID with many Atmel V-USB (and probably other) devices so patch sorts things out by checking name, vendor, product of hid device. Signed-off-by: Alexey Klimov <klimov.linux@gmail.com> Acked-by: Mauro Carvalho Chehab <mchehab@redhat.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2013-03-29Merge tag v3.9-rc1 into for-3.9/upstream-fixesJiri Kosina
This is done so that I am able to apply fix for commit 0322bd3980b3 ("usb hid quirks for Masterkit MA901 usb radio") which went into 3.9-rc1.
2013-03-28target: Fix RESERVATION_CONFLICT status regression for iscsi-target special caseNicholas Bellinger
This patch fixes a regression introduced in v3.8-rc1 code where a failed target_check_reservation() check in target_setup_cmd_from_cdb() was causing an incorrect SAM_STAT_GOOD status to be returned during a WRITE operation performed by an unregistered / unreserved iscsi initiator port. This regression is only effecting iscsi-target due to a special case check for TCM_RESERVATION_CONFLICT within iscsi_target_erl1.c:iscsit_execute_cmd(), and was still correctly disallowing WRITE commands from backend submission for unregistered / unreserved initiator ports, while returning the incorrect SAM_STAT_GOOD status due to the missing SAM_STAT_RESERVATION_CONFLICT assignment. This regression was first introduced with: commit de103c93aff0bed0ae984274e5dc8b95899badab Author: Christoph Hellwig <hch@lst.de> Date: Tue Nov 6 12:24:09 2012 -0800 target: pass sense_reason as a return value Go ahead and re-add the missing SAM_STAT_RESERVATION_CONFLICT assignment during a target_check_reservation() failure, so that iscsi-target code sends the correct SCSI status. All other fabrics using target_submit_cmd_*() with a RESERVATION_CONFLICT call to transport_generic_request_failure() are not effected by this bug. Reported-by: Jeff Leung <jleung@curriegrad2004.ca> Cc: Christoph Hellwig <hch@lst.de> Cc: <stable@vger.kernel.org> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2013-03-28tcm_vhost: Avoid VIRTIO_RING_F_EVENT_IDX feature bitNicholas Bellinger
This patch adds a VHOST_SCSI_FEATURES mask minus VIRTIO_RING_F_EVENT_IDX so that vhost-scsi-pci userspace will strip this feature bit once GET_FEATURES reports it as being unsupported on the host. This is to avoid a bug where ->handle_kicks() are missed when EVENT_IDX is enabled by default in userspace code. (mst: Rename to VHOST_SCSI_FEATURES + add comment) Acked-by: Michael S. Tsirkin <mst@redhat.com> Reviewed-by: Asias He <asias@redhat.com> Cc: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2013-03-29drm/nouveau: fix NULL ptr dereference from nv50_disp_intr()Maarten Lankhorst
Op 23-03-13 12:47, Peter Hurley schreef: > On Tue, 2013-03-19 at 11:13 -0400, Peter Hurley wrote: >> On vanilla 3.9.0-rc3, I get this 100% repeatable oops after login when >> the user X session is coming up: > Perhaps I wasn't clear that this happens on every boot and is a > regression from 3.8 > > I'd be happy to help resolve this but time is of the essence; it would > be a shame to have to revert all of this for 3.9 Well it broke on my system too, so it was easy to fix. I didn't even need gdm to trigger it! >8---- This fixes regression caused by 1d7c71a3e2f7 (drm/nouveau/disp: port vblank handling to event interface), which causes a oops in the following way: BUG: unable to handle kernel NULL pointer dereference at 0000000000000001 IP: [<0000000000000001>] 0x0 PGD 0 Oops: 0010 [#1] PREEMPT SMP Modules linked in: ip6table_filter ip6_tables ebtable_nat ebtables ...<snip>... CPU 3 Pid: 0, comm: swapper/3 Not tainted 3.9.0-rc3-xeon #rc3 Dell Inc. Precision WorkStation T5400 /0RW203 RIP: 0010:[<0000000000000001>] [<0000000000000001>] 0x0 RSP: 0018:ffff8802afcc3d80 EFLAGS: 00010087 RAX: ffff88029f6e5808 RBX: 0000000000000001 RCX: 0000000000000000 RDX: 0000000000000096 RSI: 0000000000000001 RDI: ffff88029f6e5808 RBP: ffff8802afcc3dc8 R08: 0000000000000000 R09: 0000000000000004 R10: 000000000000002c R11: ffff88029e559a98 R12: ffff8802a376cb78 R13: ffff88029f6e57e0 R14: ffff88029f6e57f8 R15: ffff88029f6e5808 FS: 0000000000000000(0000) GS:ffff8802afcc0000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b CR2: 0000000000000001 CR3: 000000029fa67000 CR4: 00000000000007e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Process swapper/3 (pid: 0, threadinfo ffff8802a355e000, task ffff8802a3535c40) Stack: ffffffffa0159d8a 0000000000000082 ffff88029f6e5820 0000000000000001 ffff88029f71aa00 0000000000000000 0000000000000000 0000000004000000 0000000004000000 ffff8802afcc3e38 ffffffffa01843b5 ffff8802afcc3df8 Call Trace: <IRQ> [<ffffffffa0159d8a>] ? nouveau_event_trigger+0xaa/0xe0 [nouveau] [<ffffffffa01843b5>] nv50_disp_intr+0xc5/0x200 [nouveau] [<ffffffff816fbacc>] ? _raw_spin_unlock_irqrestore+0x2c/0x50 [<ffffffff816ff98d>] ? notifier_call_chain+0x4d/0x70 [<ffffffffa017a105>] nouveau_mc_intr+0xb5/0x110 [nouveau] [<ffffffffa01d45ff>] nouveau_irq_handler+0x6f/0x80 [nouveau] [<ffffffff810eec95>] handle_irq_event_percpu+0x75/0x260 [<ffffffff810eeec8>] handle_irq_event+0x48/0x70 [<ffffffff810f205a>] handle_fasteoi_irq+0x5a/0x100 [<ffffffff810182f2>] handle_irq+0x22/0x40 [<ffffffff8170561a>] do_IRQ+0x5a/0xd0 [<ffffffff816fc2ad>] common_interrupt+0x6d/0x6d <EOI> [<ffffffff810449b6>] ? native_safe_halt+0x6/0x10 [<ffffffff8101ea1d>] default_idle+0x3d/0x170 [<ffffffff8101f736>] cpu_idle+0x116/0x130 [<ffffffff816e2a06>] start_secondary+0x251/0x258 Code: Bad RIP value. RIP [<0000000000000001>] 0x0 RSP <ffff8802afcc3d80> CR2: 0000000000000001 ---[ end trace 907323cb8ce6f301 ]--- Signed-off-by: Maarten Lankhorst <maarten.lankhorst@canonical.com> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2013-03-29drm/nouveau: fix handling empty channel list in ioctl'sMaarten Lankhorst
If there are no channels, chan would never end up being NULL, and so the null pointer check would fail. Solve this by initializing chan to NULL, and iterating over temp instead. Fixes oops when running intel-gpu-tools/tests/kms_flip, which attempts to do some intel ioctl's on a nouveau device. Signed-off-by: Maarten Lankhorst <maarten.lankhorst@canonical.com> Cc: stable@vger.kernel.org [3.7+] Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2013-03-28Merge tag 'usb-3.9-rc4' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb Pull USB fixes from Greg Kroah-Hartman: "Here are some USB fixes to resolve issues reported recently, as well as a new device id for the ftdi_sio driver." * tag 'usb-3.9-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: usb: ftdi_sio: Add support for Mitsubishi FX-USB-AW/-BD usb: Fix compile error by selecting USB_OTG_UTILS USB: serial: fix hang when opening port USB: EHCI: fix bug in iTD/siTD DMA pool allocation xhci: Don't warn on empty ring for suspended devices. usb: xhci: Fix TRB transfer length macro used for Event TRB. usb/acpi: binding xhci root hub usb port with ACPI usb: add find_raw_port_number callback to struct hc_driver() usb: xhci: fix build warning
2013-03-28Merge tag 'tty-3.9-rc4' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty Pull TTY/serial fixes from Greg Kroah-Hartman: "Here are some tty/serial driver fixes for 3.9. The big thing here is the fix for the huge mess we caused renaming the 8250 driver accidentally in the 3.7 kernel release, without realizing that there were users of the module options that suddenly broke. This is now resolved, and, to top the injury off, we have a backwards- compatible option for those users who got used to the new name since 3.7. Ugh, sorry about that. Other than that, some other minor fixes for issues that have been reported by users." * tag 'tty-3.9-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: Xilinx: ARM: UART: clear pending irqs before enabling irqs TTY: 8250, deprecated 8250_core.* options TTY: 8250, revert module name change serial: 8250_pci: Add WCH CH352 quirk to avoid Xscale detection tty: atmel_serial_probe(): index of atmel_ports[] fix
2013-03-28Merge tag 'staging-3.9-rc4' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging Pull staging driver fixes from Greg Kroah-Hartman: "Here are two tiny staging driver fixes to resolve issues that have been reported." * tag 'staging-3.9-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: staging: comedi: s626: fix continuous acquisition staging: zcache: fix typo "64_BIT"
2013-03-28Merge tag 'char-misc-3.9-rc4' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc Pull char/misc driver fixes from Greg Kroah-Hartman: "Here are some small char/misc driver fixes that resolve issues recently reported against the 3.9-rc kernels. All have been in linux-next for a while." * tag 'char-misc-3.9-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: VMCI: Fix process-to-process DRGAMs. mei: ME hardware reset needs to be synchronized mei: add mei_stop function to stop mei device extcon: max77693: Initialize register of MUIC device to bring up it without platform data extcon: max77693: Fix bug of wrong pointer when platform data is not used extcon: max8997: Check the pointer of platform data to protect null pointer error
2013-03-28Merge tag 'pm+acpi-3.9-rc5' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull ACPI and power management fixes from Rafael J Wysocki: - Fix for a recent cpufreq regression related to acpi-cpufreq and suspend/resume from Viresh Kumar. - cpufreq stats reference counting fix from Viresh Kumar. - intel_pstate driver fixes from Dirk Brandewie and Konrad Rzeszutek Wilk. - New ACPI suspend blacklist entry for Sony Vaio VGN-FW21M from Fabio Valentini. - ACPI Platform Error Interface (APEI) fix from Chen Gong. - PCI root bridge hotplug locking fix from Yinghai Lu. * tag 'pm+acpi-3.9-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: PCI / ACPI: hold acpi_scan_lock during root bus hotplug ACPI / APEI: fix error status check condition for CPER ACPI / PM: fix suspend and resume on Sony Vaio VGN-FW21M cpufreq: acpi-cpufreq: Don't set policy->related_cpus from .init() cpufreq: stats: do cpufreq_cpu_put() corresponding to cpufreq_cpu_get() intel-pstate: Use #defines instead of hard-coded values. cpufreq / intel_pstate: Fix calculation of current frequency cpufreq / intel_pstate: Add function to check that all MSRs are valid
2013-03-28Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6Linus Torvalds
Pull crypto fixes from Herbert Xu: "This removes IPsec ESN support from the talitos/caam drivers since they were implemented incorrectly, causing interoperability problems if ESN is used with them." * git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: Revert "crypto: caam - add IPsec ESN support" Revert "crypto: talitos - add IPsec ESN support"
2013-03-28Merge tag 'fbdev-fixes-3.9-rc4' of git://gitorious.org/linux-omap-dss2/linuxLinus Torvalds
Pull fbdev fixes from Tomi Valkeinen: "Since Florian is still away/inactive, I volunteered to collect fbdev fixes for 3.9 and changes for 3.10. I didn't receive any other fbdev fixes than OMAP yet, but I didn't want to delay this further as there's a compilation fix for OMAP1. So there could be still some fbdev fixes on the way a bit later. This contains: - Fix OMAP1 compilation - OMAP display fixes" * tag 'fbdev-fixes-3.9-rc4' of git://gitorious.org/linux-omap-dss2/linux: omapdss: features: fix supported outputs for OMAP4 OMAPDSS: tpo-td043 panel: fix data passing between SPI/DSS parts omapfb: fix broken build on OMAP1
2013-03-28net/macb: make clk_enable atomicSteffen Trumtrar
Use clk_prepare_enable/clk_disable_unprepare to be safe on SMP systems. Signed-off-by: Steffen Trumtrar <s.trumtrar@pengutronix.de> Cc: Nicolas Ferre <nicolas.ferre@atmel.com> Cc: Fabio Estevam <festevam@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-28net/macb: force endian_swp_pkt_en to offSteffen Trumtrar
The core has a bit for swapping packet data endianism. Reset default from Cadence is off. Xilinx however, who uses this core on the Zynq SoCs, opted for on. Force it to off. This shouldn't change the behaviour for current users of the macb, but enables usage on Zynq devices. Signed-off-by: Steffen Trumtrar <s.trumtrar@pengutronix.de> Cc: Nicolas Ferre <nicolas.ferre@atmel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-28net/macb: clear tx/rx completion flags in ISRSteffen Trumtrar
At least in the cadence IP core on the Xilinx Zynq SoC the TCOMP/RCOMP flags are not auto-cleaned. As these flags are evaluated, they need to be cleaned. Signed-off-by: Steffen Trumtrar <s.trumtrar@pengutronix.de> Cc: Nicolas Ferre <nicolas.ferre@atmel.com> Signed-off-by: David S. Miller <davem@davemloft.net>