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2013-01-13drm/nv17-50: restore fence buffer on resumeMarcin Slusarz
Since commit 5e120f6e4b3f35b741c5445dfc755f50128c3c44 "drm/nouveau/fence: convert to exec engine, and improve channel sync" nouveau fence sync implementation for nv17-50 and nvc0+ started to rely on state of fence buffer left by previous sync operation. But as pinned bo's (where fence state is stored) are not saved+restored across suspend/resume, we need to do it manually. nvc0+ was fixed by commit d6ba6d215a538a58f0f0026f0961b0b9125e8042 "drm/nvc0/fence: restore pre-suspend fence buffer context on resume". Fixes: https://bugs.freedesktop.org/show_bug.cgi?id=50121 Signed-off-by: Marcin Slusarz <marcin.slusarz@gmail.com> Signed-off-by: Ben Skeggs <bskeggs@redhat.com> Cc: stable@vger.kernel.org
2013-01-13drm/nouveau: fix blank LVDS screen regression on pre-nv50 cardsMarcin Slusarz
Commit 2a44e499 ("drm/nouveau/disp: introduce proper init/fini, separate from create/destroy") started to call display init routines on pre-nv50 hardware on module load. But LVDS init code sets driver state in a way which prevents modesetting code from operating properly. nv04_display_init calls nv04_dfp_restore, which sets encoder->last_dpms to NV_DPMS_CLEARED. drm_crtc_helper_set_mode nv04_dfp_prepare nv04_lvds_dpms(DRM_MODE_DPMS_OFF) nv04_lvds_dpms checks last_dpms mode (which is NV_DPMS_CLEARED) and wrongly assumes it's a "powersaving mode", the new one (DRM_MODE_DPMS_OFF) is too, so it skips calling some crucial lvds scripts. Reported-by: Chris Paulson-Ellis <chris@edesix.com> Signed-off-by: Marcin Slusarz <marcin.slusarz@gmail.com> Signed-off-by: Ben Skeggs <bskeggs@redhat.com> Cc: stable@vger.kernel.org
2013-01-13drm/nouveau: fix nouveau_client allocation failure pathMarcin Slusarz
Depending on the point of failure, freed object would be returned or memory leak would happen. Signed-off-by: Marcin Slusarz <marcin.slusarz@gmail.com> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2013-01-13drm/nouveau: don't return freed object from nouveau_handle_createMarcin Slusarz
Signed-off-by: Marcin Slusarz <marcin.slusarz@gmail.com> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2013-01-13drm/nouveau/vm: fix memory corruption when pgt allocation failsMarcin Slusarz
If we return freed vm, nouveau_drm_open will happily call nouveau_cli_destroy, which will try to free it again. Reported-by: Peter Hurley <peter@hurleysoftware.com> Signed-off-by: Marcin Slusarz <marcin.slusarz@gmail.com> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2013-01-13drm/nouveau: add locking around instobj list operationsMarcin Slusarz
Fixes memory corruptions, oopses, etc. when multiple gpuobjs are simultaneously created or destroyed. Signed-off-by: Marcin Slusarz <marcin.slusarz@gmail.com> Signed-off-by: Ben Skeggs <bskeggs@redhat.com> Cc: stable@vger.kernel.org
2013-01-13drm/nouveau: do not forcibly power on lvds panelsBen Skeggs
This fix was put in place to fix a bug where the eDP panel on certain laptops fails to respond over the aux channel after suspend. It appears that on some systems (Dell M6600, with LVDS panel) there's a very bad interaction with the eDP init table that causes the SOR to get very confused and not drive the panel correctly, leading to bleed. A DPMS off/on cycle is enough to bring it back, but, this will avoid the problem by not touching the panel GPIOs at times we're not meant to. Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2013-01-13drm/nouveau/devinit: ensure legacy vga control is enabled during postBen Skeggs
Fixes ACPI backlight control after suspend on some systems. Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2013-01-12be2net: fix unconditionally returning IRQ_HANDLED in INTxSathya Perla
commit e49cc34f introduced an unconditional IRQ_HANDLED return in be_intx() to workaround Lancer and BE2 HW issues. This is bad as it prevents the kernel from detecting interrupt storms due to broken HW. The BE2/Lancer HW issues are: 1) In Lancer, there is no means for the driver to detect if the interrupt belonged to device, other than counting and notifying events. 2) In Lancer de-asserting INTx takes a while, causing the INTx irq handler to be called multiple times till the de-assert happens. 3) In BE2, we see an occasional interrupt even when EQs are unarmed. Issue (1) can cause the notified events to be orphaned, if NAPI was already running. This patch fixes this issue by scheduling NAPI only if it is not scheduled already. Doing this also takes care of possible events_get() race that may be caused due to issue (2) and (3). Also, IRQ_HANDLED is returned only the first time zero events are detected. (Thanks Ben H. for the feedback and suggestions.) Signed-off-by: Sathya Perla <sathya.perla@emulex.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-01-12PCI: pciehp: Use per-slot workqueues to avoid deadlockYijing Wang
When we have a hotplug-capable PCIe port with a second hotplug-capable PCIe port below it, removing the device below the upstream port causes a deadlock. The deadlock happens because we use the pciehp_wq workqueue to run pciehp_power_thread(), which uses pciehp_disable_slot() to remove devices below the upstream port. When we remove the downstream PCIe port, we call pciehp_remove(), the pciehp driver's .remove() method. That calls flush_workqueue(pciehp_wq), which deadlocks because the pciehp_power_thread() work item is still running. This patch avoids the deadlock by creating a workqueue for every PCIe port and removing the single shared workqueue. Here's the call path that leads to the deadlock: pciehp_queue_pushbutton_work queue_work(pciehp_wq) # queue pciehp_power_thread ... pciehp_power_thread pciehp_disable_slot remove_board pciehp_unconfigure_device pci_stop_and_remove_bus_device ... pciehp_remove # pciehp driver .remove method pciehp_release_ctrl pcie_cleanup_slot flush_workqueue(pciehp_wq) This is fairly urgent because it can be caused by simply unplugging a Thunderbolt adapter, as reported by Daniel below. [bhelgaas: changelog] Reference: http://lkml.kernel.org/r/CAMVG2ssiRgcTD1bej2tkUUfsWmpL5eNtPcNif9va2-Gzb2u8nQ@mail.gmail.com Reported-and-tested-by: Daniel J Blueman <daniel@quora.org> Reviewed-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com> Signed-off-by: Yijing Wang <wangyijing@huawei.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> CC: stable@vger.kernel.org
2013-01-12ACPI / glue: Fix build with ACPI_GLUE_DEBUG setYinghai Lu
If ACPI_GLUE_DEBUG is different from 0 (setting this requires a manual change of glue.c), build breaks because of a leftover reference to dev->acpi_handle in acpi_platform_notify(). Fix this by using ACPI_HANDLE(dev) instead as appropriate. [rjw: Subject and changelog] Signed-off-by: Yinghai Lu <yinghai@kernel.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2013-01-11tuntap: fix leaking reference countJason Wang
Reference count leaking of both module and sock were found: - When a detached file were closed, its sock refcnt from device were not released, solving this by add the sock_put(). - The module were hold or drop unconditionally in TUNSETPERSIST, which means we if we set the persist flag for N times, we need unset it for another N times. Solving this by only hold or drop an reference when there's a flag change and also drop the reference count when the persist device is deleted. Signed-off-by: Jason Wang <jasowang@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-01-11tuntap: forbid calling TUNSETIFF when detachedJason Wang
Michael points out that even after Stefan's fix the TUNSETIFF is still allowed to create a new tap device. This because we only check tfile->tun but the tfile->detached were introduced. Fix this by failing early in tun_set_iff() if the file is detached. After this fix, there's no need to do the check again in tun_set_iff(), so this patch removes it. Cc: Michael S. Tsirkin <mst@redhat.com> Cc: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Jason Wang <jasowang@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-01-11tuntap: switch to use rtnl_dereference()Jason Wang
Switch to use rtnl_dereference() instead of the open code, suggested by Eric. Cc: Eric Dumazet <edumazet@google.com> Signed-off-by: Jason Wang <jasowang@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-01-11usb: host: ohci-tmio: fix compile warningFelipe Balbi
Fix the following compile warning: In file included from drivers/usb/host/ohci-hcd.c:1170:0: drivers/usb/host/ohci-tmio.c: In function 'tmio_start_hc': drivers/usb/host/ohci-tmio.c:130:2: warning: format '%llx' expects argument of type 'long long unsigned int', but argument 4 has type 'resource_size_t' [-Wformat] seen on ARM 32-bit builds. Signed-off-by: Felipe Balbi <balbi@ti.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-11USB: Add device quirk for Microsoft VX700 webcamAndreas Fleig
Add device quirk for Microsoft Lifecam VX700 v2.0 webcams. Fixes squeaking noise of the microphone. Signed-off-by: Andreas Fleig <andreasfleig@gmail.com> Cc: stable <stable@vger.kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-11USB: ehci-fsl: fix regression on mpc5121eAnatolij Gustschin
mpc5121e doesn't have system interface registers, accessing this register address space cause the machine check exception and a kernel crash: ... Machine check in kernel mode. Caused by (from SRR1=49030): Transfer error ack signal Oops: Machine check, sig: 7 [#1] MPC5121 ADS Modules linked in: NIP: c025fd60 LR: c0265bb4 CTR: 00000000 REGS: df82dac0 TRAP: 0200 Not tainted (3.7.0-rc7-00641-g81e6c91) MSR: 00049030 <EE,ME,IR,DR> CR: 42002024 XER: 20000000 TASK = df824b70[1] 'swapper' THREAD: df82c000 GPR00: 00000000 df82db70 df824b70 df3ed0f0 00000003 00000000 00000000 00000000 GPR08: 00000020 32000000 c03550ec 20000000 22002028 00000000 c0003f5c 00000000 GPR16: 00000000 00000000 00000000 00000000 00000000 00000000 c0423898 c0450000 GPR24: 00000077 00000002 e5086180 1c000c00 e5086000 df33ec00 00000003 df34e000 NIP [c025fd60] ehci_fsl_setup_phy+0xd0/0x354 LR [c0265bb4] ehci_fsl_setup+0x220/0x284 ... Fix it by checking 'have_sysif_regs' flag before register access. Signed-off-by: Anatolij Gustschin <agust@denx.de> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-11usb: chipidea: Allow disabling streaming not only in udc modeFabio Estevam
When running a scp transfer using a USB/Ethernet adapter the following crash happens: $ scp test.tar.gz fabio@192.168.1.100:/home/fabio fabio@192.168.1.100's password: test.tar.gz 0% 0 0.0KB/s --:-- ETA ------------[ cut here ]------------ WARNING: at net/sched/sch_generic.c:255 dev_watchdog+0x2cc/0x2f0() NETDEV WATCHDOG: eth0 (asix): transmit queue 0 timed out Modules linked in: Backtrace: [<80011c94>] (dump_backtrace+0x0/0x10c) from [<804d3a5c>] (dump_stack+0x18/0x1c) r6:000000ff r5:80412388 r4:80685dc0 r3:80696cc0 [<804d3a44>] (dump_stack+0x0/0x1c) from [<80021868>] (warn_slowpath_common+0x54/0x6c) [<80021814>] (warn_slowpath_common+0x0/0x6c) from [<80021924>] (warn_slowpath_fmt+0x38/0x40) ... Setting SDIS (Stream Disable Mode- bit 4 of USBMODE register) fixes the problem. However, in current code CI13XXX_DISABLE_STREAMING flag is only set in udc mode, so allow disabling streaming also in host mode. Tested on a mx6qsabrelite board. Suggested-by: Peter Chen <peter.chen@freescale.com> Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com> Reviewed-by: Peter Chen <peter.chen@freescale.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-11USB: fsl-mph-dr-of: fix regression on mpc5121eAnatolij Gustschin
fsl-ehci probing fails on mpc5121e: ... ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver fsl-ehci fsl-ehci.0: Freescale On-Chip EHCI Host Controller fsl-ehci fsl-ehci.0: new USB bus registered, assigned bus number 1 fsl-ehci fsl-ehci.0: Could not get controller version fsl-ehci fsl-ehci.0: can't setup fsl-ehci fsl-ehci.0: USB bus 1 deregistered fsl-ehci fsl-ehci.0: init fsl-ehci.0 fail, -22 fsl-ehci: probe of fsl-ehci.0 failed with error -22 Fix it by returning appropriate version info for mpc5121, too. Signed-off-by: Anatolij Gustschin <agust@denx.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-11USB: select USB_ARCH_HAS_EHCI for MXSMaxime Ripard
Commit 09f6ffde (USB: EHCI: fix build error by making ChipIdea host a normal EHCI driver) introduced a dependency on USB_EHCI_HCD for the chipidea USB host driver, that in turns depends on USB_ARCH_HAS_EHCI. If this symbol is not set for MXS, the MXS boards are not able to use the chipidea driver anymore. Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-12ASoC: atmel-ssc: add pinctrl selection to driverBo Shen
Add default pinctrl selection to atmel-ssc driver. The pinctrl is mandatory. Signed-off-by: Bo Shen <voice.shen@atmel.com> [nicolas.ferre@atmel.com: split dtsi and driver changes] Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2013-01-11qlge: remove NETIF_F_TSO6 flagAmerigo Wang
It is werid that qlge driver supports NETIF_F_TSO6 but not NETIF_F_IPV6_CSUM. This also causes some kernel warning [1] when VLAN device setups on a qlge interface. I think the qlge hardware doesn't support NETIF_F_IPV6_CSUM, so we have to just remove the NETIF_F_TSO6 flag. After this patch, the TCP/IPv6 traffic becomes normal again, no kernel warnings any more. NOTE: I only tested it on 2.6.32 kernel, even if the upstream kernel could fix this automatically (it is hard to track NETIF* flags), removing it is also safe. 1. https://bugzilla.redhat.com/show_bug.cgi?id=891839 Cc: Jitendra Kalsaria <jitendra.kalsaria@qlogic.com> Cc: Ron Mercer <ron.mercer@qlogic.com> Cc: linux-driver@qlogic.com Cc: David S. Miller <davem@davemloft.net> Signed-off-by: Cong Wang <amwang@redhat.com> Acked-by: Jitendra Kalsaria <jitendra.kalsaria@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-01-11Merge tag 'hwmon-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging Pull a hwmon patch from Guenter Roeck: "Fix build error in vexpress driver" * tag 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging: hwmon: (vexpress) Fix build error seen if CONFIG_OF_DEVICE is not set
2013-01-11Merge branch 'akpm' (incoming fixes from Andrew)Linus Torvalds
Merge misc fixes from Andrew Morton: "The audit fixes have been floating around for a while - Al and Eric aren't responding to either myself or Kees so I asked Kees to re-review them and here they are." * emailed patches from Andrew Morton <akpm@linux-foundation.org>: (22 commits) lib/rbtree.c: avoid the use of non-static __always_inline MAINTAINERS: Omar had moved mm: compaction: partially revert capture of suitable high-order page linux/audit.h: move ptrace.h include to kernel header kernel/audit.c: avoid negative sleep durations audit: catch possible NULL audit buffers audit: create explicit AUDIT_SECCOMP event type MAINTAINERS: fix a status pattern MAINTAINERS: fix arch/arm/plat-omap/include/plat/omap_hwmod.h mm: thp: acquire the anon_vma rwsem for write during split mm: mmap: annotate vm_lock_anon_vma locking properly for lockdep lockdep, rwsem: provide down_write_nest_lock() arch/mn10300/Kconfig: select CONFIG_GENERIC_ATOMIC64 mm: bootmem: fix free_all_bootmem_core() with odd bitmap alignment mm: use aligned zone start for pfn_to_bitidx calculation fs/exec.c: work around icc miscompilation mm: compaction: fix echo 1 > compact_memory return error issue mm: memblock: fix wrong memmove size in memblock_merge_regions() drivers/video/ssd1307fb.c: fix bit order bug in the byte translation function mm: migrate: check page_count of THP before migrating ...
2013-01-11drivers/video/ssd1307fb.c: fix bit order bug in the byte translation functionMaxime Ripard
This was leading to a strange behaviour when using the fbcon driver on top of this one: the letters were in the right order, but each letter had a vertical symmetry. This was because the addressing was right for the byte, but the addressing of each individual bit was inverted. Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com> Cc: Brian Lilly <brian@crystalfontz.com> Cc: Greg Kroah-Hartman <gregkh@linux-foundation.org> Cc: Florian Tobias Schandinat <FlorianSchandinat@gmx.de> Cc: Thomas Petazzoni <thomas@free-electrons.com> Cc: Tomi Valkeinen <tomi.valkeinen@ti.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-01-11drivers/rtc/rtc-da9055.c: fix cross-section referenceAndrew Morton
Fix the warning WARNING: drivers/rtc/rtc-da9055.o(.text+0xa71): Section mismatch in reference from the function da9055_rtc_probe() to the function .init.text:da9055_rtc_device_init() Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-01-11cpuidle: fix number of initialized/destroyed statesKrzysztof Mazur
Commit bf4d1b5ddb78f86078ac6ae0415802d5f0c68f92 (cpuidle: support multiple drivers) changed the number of initialized state kobjects in cpuidle_add_state_sysfs() from device->state_count to drv->state_count, but left device->state_count in cpuidle_remove_state_sysfs(). The values of these two fields may be different, in which case a NULL pointer dereference may happen in cpuidle_remove_state_sysfs(), for example. Fix this problem by making cpuidle_add_state_sysfs() use device->state_count too (which restores the original behavior of it). [rjw: Changelog] Signed-off-by: Krzysztof Mazur <krzysiek@podlesie.net> Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2013-01-11USB: hub: handle claim of enabled remote wakeup after resetOliver Neukum
Some touchscreens have buggy firmware which claims remote wakeup to be enabled after a reset. They nevertheless crash if the feature is cleared by the host. Add a check for reset resume before checking for an enabled remote wakeup feature. On compliant devices the feature must be cleared after a reset anyway. Signed-off-by: Oliver Neukum <oneukum@suse.de> Acked-by: Alan Stern <stern@rowland.harvard.edu> Cc: stable <stable@vger.kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-11USB: cdc-acm: Add support for "PSC Scanning, Magellan 800i"Denis N Ladin
Adding support "PSC Scanning, Magellan 800i" in cdc-acm Very simple, but very necessary. Suitable for all versions of the kernel > 2.6 Signed-off-by: Denis N Ladin <denladin@gmail.com> Cc: stable <stable@vger.kernel.org> Acked-by: Oliver Neukum <oneukum@suse.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-11USB: option: add Nexpring NP10T terminal idDzianis Kahanovich
Hyundai Petatel Inc. Nexpring NP10T terminal (EV-DO rev.A USB modem) ID Signed-off-by: Denis Kaganovich <mahatma@eu.by> Cc: stable <stable@vger.kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-11USB: option: add Telekom Speedstick LTE IIBjørn Mork
also known as Alcatel One Touch L100V LTE The driver description files gives these names to the vendor specific functions on this modem: Application1: VID_1BBB&PID_011E&MI_00 Application2: VID_1BBB&PID_011E&MI_01 Modem: VID_1BBB&PID_011E&MI_03 Ethernet: VID_1BBB&PID_011E&MI_04 Reported-by: Thomas Schäfer <tschaefer@t-online.de> Cc: <stable@vger.kernel.org> Signed-off-by: Bjørn Mork <bjorn@mork.no> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-11USB: option: blacklist network interface on ZTE MF880Bjørn Mork
The driver description files gives these names to the vendor specific functions on this modem: diag: VID_19D2&PID_0284&MI_00 nmea: VID_19D2&PID_0284&MI_01 at: VID_19D2&PID_0284&MI_02 mdm: VID_19D2&PID_0284&MI_03 net: VID_19D2&PID_0284&MI_04 Signed-off-by: Bjørn Mork <bjorn@mork.no> Cc: stable <stable@vger.kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-11usb: imx21-hcd: Include missing linux/module.hFabio Estevam
Include <linux/module.h>, so that the following errors are fixed: drivers/usb/host/imx21-hcd.c:1929:20: error: expected declaration specifiers or '...' before string constant drivers/usb/host/imx21-hcd.c:1930:15: error: expected declaration specifiers or '...' before string constant drivers/usb/host/imx21-hcd.c:1931:16: error: expected declaration specifiers or '...' before string constant drivers/usb/host/imx21-hcd.c:1932:14: error: expected declaration specifiers or '...' before string constant Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-11USB: option: Add new MEDIATEK PID supportQuentin.Li
In option.c, add some new MEDIATEK PIDs support for MEDIATEK new products. This is a MEDIATEK inc. release patch. Signed-off-by: Quentin.Li <snowmanli88@163.com> Cc: stable <stable@vger.kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-11brcmsmac: increase timer reference count for new timers onlyPiotr Haber
On hardware reintialization reference count of already existing timers would be increased again. This leads to problems on module unloading. Cc: stable@vger.kernel.org Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com> Reviewed-by: Hante Meuleman <meuleman@broadcom.com> Reviewed-by: Arend van Spriel <arend@broadcom.com> Signed-off-by: Piotr Haber <phaber@broadcom.com> Signed-off-by: Arend van Spriel <arend@broadcom.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-01-11ath9k: fix rx flush handlingFelix Fietkau
Right now the rx flush is not doing anything useful on AR9003+, as it only works if the buffers in the rx FIFO have not been purged yet, as is done by ath_stoprecv. To fix this, always call ath_flushrecv from within ath_stoprecv before the FIFO is emptied, but still after the hw receive path has been stopped. This ensures that frames received (and ACKed by the hardware) shortly before a reset will be seen by the software, which should improve A-MPDU session stability. Cc: stable@vger.kernel.org Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-01-11ath9k: add a better fix for the rx tasklet vs rx flush raceFelix Fietkau
Ensure that the rx tasklet is no longer running when entering the reset path. Also remove the distinction between flush and no-flush frame processing. If a frame has been received and ACKed by the hardware, the stack needs to see it, so that the BA receive window does not go out of sync. Cc: stable@vger.kernel.org Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-01-11ath9k: remove the WARN_ON that triggers if generating a beacon failsFelix Fietkau
During teardown, mac80211 will not return a new beacon. This is normal and handled properly in the driver, so there's no need to spam the user with a kernel warning here. Cc: stable@vger.kernel.org Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-01-11ath9k: fix double-free bug on beacon generate failureFelix Fietkau
When the next beacon is sent, the ath_buf from the previous run is reused. If getting a new beacon from mac80211 fails, bf->bf_mpdu is not reset, yet the skb is freed, leading to a double-free on the next beacon tx attempt, resulting in a system crash. Cc: stable@vger.kernel.org Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-01-11ath9k: do not link receive buffers during flushFelix Fietkau
On AR9300 the rx FIFO needs to be empty during reset to ensure that no further DMA activity is generated, otherwise it might lead to memory corruption issues. Cc: stable@vger.kernel.org Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-01-11ath9k_htc: Fix memory leakSujith Manoharan
SKBs that are allocated in the HTC layer do not have callbacks registered and hence ended up not being freed, Fix this by freeing them properly in the TX completion routine. Cc: <stable@vger.kernel.org> Reported-by: Larry Finger <Larry.Finger@lwfinger.net> Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com> Tested-by: Larry Finger <Larry.Finger@lwfinger.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-01-11mwifiex: correct config_bands handling for ibss networkAmitkumar Karwar
BAND_G is implicit when BAND_GN is present. Signed-off-by: Amitkumar Karwar <akarwar@marvell.com> Signed-off-by: Bing Zhao <bzhao@marvell.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-01-11mwifiex: update config_bands during infra associationAmitkumar Karwar
Currently "adapter->config_bands" is updated during infra association only if channel is provided by user in "iw connect" command. config_bands is used while preparing association request to calculate supported rates by intersecting our rates with the rates advertised by AP. There is corner case in which we include zero rates in supported rates TLV based on previous IBSS network history, which leads to association failure. This patch fixes the problem by correctly updating config_bands. Cc: "3.7.y" <stable@vger.kernel.org> Signed-off-by: Amitkumar Karwar <akarwar@marvell.com> Signed-off-by: Bing Zhao <bzhao@marvell.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-01-11xen/privcmd: Relax access control in privcmd_ioctl_mmapTamas Lengyel
In the privcmd Linux driver two checks in the functions privcmd_ioctl_mmap and privcmd_ioctl_mmap_batch are not needed as they are trying to enforce hypervisor-level access control. They should be removed as they break secondary control domains when performing dom0 disaggregation. Xen itself provides adequate security controls around these hypercalls and these checks prevent those controls from functioning as intended. Signed-off-by: Tamas K Lengyel <tamas.lengyel@zentific.com> Cc: Daniel De Graaf <dgdegra@tycho.nsa.gov> [v1: Fixed up the patch and commit description] Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
2013-01-11Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linuxLinus Torvalds
Pull intel DRM fixes from Dave Airlie: "Just intel fixes, including getting the Ironlake systems back to the state they were in for 3.6." * 'drm-fixes' of git://people.freedesktop.org/~airlied/linux: drm/i915: Revert shrinker changes from "Track unbound pages" drm/i915: Use pixel size for computing linear offsets into a sprite drm/i915: Add DEBUG messages to all intel_create_user_framebuffer error paths drm/i915: The sprite scaler on Ironlake also support YUV planes drm: Only evict the blocks required to create the requested hole drm/i915: Treat crtc->mode.clock == 0 as disabled Revert "drm/i915: no lvds quirk for Zotac ZDBOX SD ID12/ID13" drm/i915; Only increment the user-pin-count after successfully pinning the bo
2013-01-11[media] uvcvideo: Set error_idx properly for S_EXT_CTRLS failuresLaurent Pinchart
The uvc_set_ctrl() calls don't write to the hardware. A failure at that point thus leaves the device in a clean state, with no control modified. Set the error_idx field to the count value to reflect that, as per the V4L2 specification. TRY_EXT_CTRLS is unchanged and the error_idx field must always be set to the failed control index in that case. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Acked-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-11[media] uvcvideo: Cleanup leftovers of partial revertLaurent Pinchart
Commit ba68c8530a263dc4de440fa10bb20a1c5b9d4ff5 (Partly revert "[media] uvcvideo: Set error_idx properly for extended controls API failures") missed two modifications. Clean them up. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Acked-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-11[media] uvcvideo: Return -EACCES when trying to set a read-only controlLaurent Pinchart
Commit ba68c8530a263dc4de440fa10bb20a1c5b9d4ff5 (Partly revert "[media] uvcvideo: Set error_idx properly for extended controls API failures") also reverted part of commit 30ecb936cbcd83e3735625ac63e1b4466546f5fe ("uvcvideo: Return -EACCES when trying to access a read/write-only control") by mistake. Fix it. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Acked-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-11Merge tag 'v3.8-rc3' into v4l_for_linusMauro Carvalho Chehab
Linux 3.8-rc3 * tag 'v3.8-rc3': (11110 commits) Linux 3.8-rc3 mm: reinstante dropped pmd_trans_splitting() check cred: Remove tgcred pointer from struct cred drm/ttm: fix fence locking in ttm_buffer_object_transfer ARM: clps711x: Fix bad merge of clockevents setup ARM: highbank: save and restore L2 cache and GIC on suspend ARM: highbank: add a power request clear ARM: highbank: fix secondary boot and hotplug ARM: highbank: fix typos with hignbank in power request functions ARM: dts: fix highbank cpu mpidr values ARM: dts: add device_type prop to cpu nodes on Calxeda platforms drm/prime: drop reference on imported dma-buf come from gem xen/netfront: improve truesize tracking ARM: mx5: Fix MX53 flexcan2 clock ARM: OMAP2+: am33xx-hwmod: Fix wrongly terminated am33xx_usbss_mpu_irqs array sctp: fix Kconfig bug in default cookie hmac selection EDAC: Cleanup device deregistering path EDAC: Fix EDAC Kconfig menu EDAC: Fix kernel panic on module unloading ALSA: hda - add mute LED for HP Pavilion 17 (Realtek codec) ...
2013-01-11sh: clkfwk: bugfix: sh_clk_div_enable() care sh_clk_div_set_rate() if div6Kuninori Morimoto
764f4e4e33d18cde4dcaf8a0d860b749c6d6d08b (sh: clkfwk: Use shared sh_clk_div_enable/disable()) shared enable/disable funcions for div4/div6. But new sh_clk_div_enable() didn't care sh_clk_div_set_rate() which is required on div6 clock. This patch fixes it. Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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