- 16 Nov, 2012 7 commits
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/ttyLinus Torvalds authored
Pull TTY fixes from Greg Kroah-Hartman: "Here are two TTY driver fixes for 3.7-rc5. They resolve a bug in the hvc driver that has been reported, and fix a problem with the list of device ids in the max310x serial driver. Both have been in linux-next for a while. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>" * tag 'tty-3.7-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: tty: serial: max310x: Add terminating entry for spi_device_id table TTY: hvc_console, fix port reference count going to zero prematurely
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/stagingLinus Torvalds authored
Pull staging tree fix from Greg Kroah-Hartman: "Here is a single patch, a revert of an android driver patch, that resolves a bug that has been reported in the Android alarm driver. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>" * tag 'staging-3.7-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: Revert "Staging: Android alarm: IOCTL command encoding fix"
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git://git.kernel.org/pub/scm/linux/kernel/git/s390/linuxLinus Torvalds authored
Pull s390 patches from Martin Schwidefsky: "Some more bug fixes and a config change. The signal bug is nasty, if the clock_gettime vdso function is interrupted by a signal while in access-register-mode we end up with an endless signal loop until the signal stack is full. The config change is for aligned struct pages, gives us 8% improvement with hackbench." * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: s390/3215: fix tty close handling s390/mm: have 16 byte aligned struct pages s390/gup: fix access_ok() usage in __get_user_pages_fast() s390/gup: add missing TASK_SIZE check to get_user_pages_fast() s390/topology: fix core id vs physical package id mix-up s390/signal: set correct address space control
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git://people.freedesktop.org/~airlied/linuxLinus Torvalds authored
Pull drm fixes from Dave Airlie: "All pretty normal: one TTM oops fix, one radeon, a few intel and a vmwgfx fix." * 'drm-fixes' of git://people.freedesktop.org/~airlied/linux: drm/ttm: remove unneeded preempt_disable/enable ttm: Clear the ttm page allocated from high memory zone correctly vmwgfx: return an -EFAULT if copy_to_user() fails drm/radeon: fix logic error in atombios_encoders.c drm/i915: do not ignore eDP bpc settings from vbt drm/i915/sdvo: clean up connectors on intel_sdvo_init() failures drm/i915/crt: fix DPMS standby and suspend mode handling
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git://git.linaro.org/people/mturquette/linuxLinus Torvalds authored
Pull another clk layer fix from Michael Turquette: "GCC 4.7 users get compilation errors from unnecessary use of inline in clk-provider.h. This pull request fixes the regression by removing inline usage from those function declarations." * tag 'clk-fixes-for-linus' of git://git.linaro.org/people/mturquette/linux: clk: remove inline usage from clk-provider.h
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git://people.freedesktop.org/~danvet/drm-intelDave Airlie authored
Daniel writes: Just a few small things to fix regressions, somehow all patches from Jani: - Fix dpms confusion about which platforms support intermediate modes on vga. - Revert the "ignore vbt for eDP bpc" patch, it breaks machines. This will annoy mbp retina owners again, but windows machines seem to _really_ depend upon this. We can try to quirk the mbp retinas again in 3.8 and backport the patch. - Fix connector leaks when the sdvo setup failed, resulted in an OOPS later on when trying to probe that connector (with it's encoder kfree'd already). * 'drm-intel-fixes' of git://people.freedesktop.org/~danvet/drm-intel: drm/i915: do not ignore eDP bpc settings from vbt drm/i915/sdvo: clean up connectors on intel_sdvo_init() failures drm/i915/crt: fix DPMS standby and suspend mode handling
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git://people.freedesktop.org/~agd5f/linuxDave Airlie authored
Just a single radeon fix from Alex. * 'drm-fixes-3.7' of git://people.freedesktop.org/~agd5f/linux: drm/radeon: fix logic error in atombios_encoders.c
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- 15 Nov, 2012 15 commits
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Akinobu Mita authored
It is unnecessary to disable preemption explicitly while calling copy_highpage(). Because copy_highpage() will do it again through kmap_atomic/kunmap_atomic. Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com> Reviewed-by: Thomas Hellstrom <thellstrom@vmware.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
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Zhao Yakui authored
The TTM page can be allocated from high memory. In such case it is wrong to use the page_address(page) as the virtual address for the high memory page. bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=50241Signed-off-by: Zhao Yakui <yakui.zhao@intel.com> Cc: stable@vger.kernel.org Reviewed-by: Thomas Hellstrom <thellstrom@vmware.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
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Dan Carpenter authored
copy_to_user() returns the number of bytes remaining to be copied, but we want to return a negative error code here. I fixed a couple of these last year, but I missed this one. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Reviewed-by: Thomas Hellstrom <thellstrom@vmware.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
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Igor Mazanov authored
Users of GCC 4.7 have reported compiler errors due to having inline applied to function declarations in clk-provider.h. The definitions exist in drivers/clk/clk.c. An example error: In file included from arch/arm/mach-omap2/clockdomain.c:25:0: arch/arm/mach-omap2/clockdomain.c: In function ‘clkdm_clk_disable’: include/linux/clk-provider.h:338:12: error: inlining failed in call to always_inline ‘__clk_get_enable_count’: function body not available arch/arm/mach-omap2/clockdomain.c:1001:28: error: called from here make[1]: *** [arch/arm/mach-omap2/clockdomain.o] Error 1 make: *** [arch/arm/mach-omap2] Error 2 This patch removes the use of inline from include/linux/clk-provider.h but keeps the function definitions in drivers/clk/clk.c as inlined since they are one-liners. Signed-off-by: Igor Mazanov <i.mazanov@gmail.com> Acked-by: Paul Walmsley <paul@pwsan.com> Signed-off-by: Mike Turquette <mturquette@linaro.org> [mturquette@linaro.org: improved subject, added changelog]
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git://github.com/gxt/linuxLinus Torvalds authored
Pull unicore32 update from Guan Xuetao. * tag 'for-linus' of git://github.com/gxt/linux: arch/unicore32: remove CONFIG_EXPERIMENTAL unicore32: switch to generic sys_execve() unicore32: switch to generic kernel_thread()/kernel_execve() unicore32: Use Kbuild infrastructure for kvm_para.h UAPI: (Scripted) Disintegrate arch/unicore32/include/asm UniCore32-bugfix: Remove definitions in asm/bug.h to solve difference between native and cross compiler UniCore32-bugfix: fix mismatch return value of __xchg_bad_pointer UniCore32 bugfix: add missed CONFIG_ZONE_DMA unicore32/mm/fault.c: Port OOM changes to do_pf
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git://git.infradead.org/linux-ubifsLinus Torvalds authored
Pull UBIFS fixes from Artem Bityutskiy: "Two patches which fix a problem reported by several people in the past, but only fixed now because no one gave enough material for debugging. Anyway, these fix the problem that sometimes after a power cut the file-system is not mountable with the following symptom: grab_empty_leb: could not find an empty LEB The fixes make the file-system mountable again." * tag 'upstream-3.7-rc6' of git://git.infradead.org/linux-ubifs: UBIFS: fix mounting problems after power cuts UBIFS: introduce categorized lprops counter
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git://git.infradead.org/users/cbou/linux-pstoreLinus Torvalds authored
Pull pstore fix from Anton Vorontsov: "A small fixup for the persistent storage subsystem. The bug can prevent kernel booting on a APEI-enabled machines w/ PSTORE_CONSOLE=y (this is N by default, though)." * tag 'for-v3.7-fixes' of git://git.infradead.org/users/cbou/linux-pstore: pstore: Fix NULL pointer dereference in console writes
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git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/stagingLinus Torvalds authored
Pill i2c fixes from Jean Delvare. Well, "fixes".. The biggest patch here is actually Jan marking Wolfram Sang as the main i2c subsystem maintainer, with Jan staying on as the PC controller maintainer. * 'i2c-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging: i2c-mux-pinctrl: Fix probe error path MAINTAINERS: i2c: 7 years, this is it
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git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulatorLinus Torvalds authored
Pull regulator fixes from Mark Brown: "A few fixes for teardown issues that will be rarely seen, plus a fix for a silly bug in regulator_is_supported_voltage() which shows how often the answer to the question should be false. The supported voltage commit is very new as I just edited to add a Cc to stable, the code itself has been in -next." * tag 'regulator-3.7' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator: regulator: fix voltage check in regulator_is_supported_voltage() regulator: core: Avoid deadlock when regulator_register fails Regulator: core: Unregister when gpio request fails.
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git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/soundLinus Torvalds authored
Pull sound fixes from Takashi Iwai: "The only large LOC is seen in WM5102 driver, just writing a bunch of register updates, but the actual code change is small. Other than that, all small fixes suitable for rc6." * tag 'sound-3.7' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: ALSA: usb-audio: Fix mutex deadlock at disconnection ALSA: fm801: precedence bug in snd_fm801_tea575x_get_pins() ALSA: es1968: precedence bug in snd_es1968_tea575x_get_pins() ALSA: hda - Add a missing quirk entry for iMac 9,1 ASoC: core: Double control update err for snd_soc_put_volsw_sx ASoC: dapm: Use card_list during DAPM shutdown ASoC: cs42l52: fix the return value of cs42l52_set_fmt() ASoC: bells: Correct type in sub speaker DAI name for WM5102 ASoC: wm8978: pll incorrectly configured when codec is master ASoC: mxs-saif: Fix channel swap for 24-bit format ASoC: bells: Select WM1250-EV1 Springbank audio I/O module ASoC: bells: Add missing select of WM0010 ASoC: mxs-saif: Add MODULE_ALIAS ASoC: wm5102: Write register value corrections after SYSCLK is enabled
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Heiko Carstens authored
The 3215 console always has the RAW3215_FIXED flag set, which causes raw3215_shutdown() not to wait for outstanding I/O requests if an attached tty gets closed. The flag however can be simply removed, so we can guarantee that all requests belonging to the tty have been processed when the tty is closed. However the tasklet that belongs to the 3215 device may be scheduled even if there is no tty attached anymore, since we have a race between console and tty processing. Thefore unconditional tty_wakekup() in raw3215_wakeup() can cause the following NULL pointer dereference: 3.465368 Unable to handle kernel pointer dereference at virtual kernel address (null) 3.465448 Oops: 0004 #1 SMP 3.465454 Modules linked in: 3.465459 CPU: 1 Not tainted 3.6.0 #1 3.465462 Process swapper/1 (pid: 0, task: 000000003ffa4428, ksp: 000000003ffb7ce0) 3.465466 Krnl PSW : 0404100180000000 0000000000162f86 (__wake_up+0x46/0xb8) 3.465480 R:0 T:1 IO:0 EX:0 Key:0 M:1 W:0 P:0 AS:0 CC:1 PM:0 EA:3 Krnl GPRS: fffffffffffffffe 0000000000000000 0000000000000160 0000000000000001 3.465492 0000000000000001 0000000000000004 0000000000000004 000000000096b490 3.465499 0000000000000001 0000000000000100 0000000000000001 0000000000000001 3.465506 070000003fc87d60 0000000000000160 000000003fc87d68 000000003fc87d00 3.465526 Krnl Code: 0000000000162f76: e3c0f0a80004 lg %r12,168(%r15) 0000000000162f7c: 58000370 l %r0,880 #0000000000162f80: c007ffffffff00 xilf %r0,4294967295 >0000000000162f86: ba102000 cs %r1,%r0,0(%r2) 0000000000162f8a: 1211 ltr %r1,%r1 0000000000162f8c: a774002f brc 7,162fea 0000000000162f90: b904002d lgr %r2,%r13 0000000000162f94: b904003a lgr %r3,%r10 3.465597 Call Trace: 3.465599 (<0400000000000000> 0x400000000000000) 3.465602 <000000000048c77e> raw3215_wakeup+0x2e/0x40 3.465607 <0000000000134d66> tasklet_action+0x96/0x168 3.465612 <000000000013423c> __do_softirq+0xd8/0x21c 3.465615 <0000000000134678> irq_exit+0xa8/0xac 3.465617 <000000000046c232> do_IRQ+0x182/0x248 3.465621 <00000000005c8296> io_return+0x0/0x8 3.465625 <00000000005c7cac> vtime_stop_cpu+0x4c/0xb8 3.465629 (<0000000000194e06> tick_nohz_idle_enter+0x4e/0x74) 3.465633 <0000000000104760> cpu_idle+0x170/0x184 3.465636 <00000000005b5182> smp_start_secondary+0xd6/0xe0 3.465641 <00000000005c86be> restart_int_handler+0x56/0x6c 3.465643 <0000000000000000> 0x0 3.465645 Last Breaking-Event-Address: 3.465647 <0000000000403136> tty_wakeup+0x46/0x98 3.465652 3.465654 Kernel panic - not syncing: Fatal exception in interrupt 01: HCPGIR450W CP entered; disabled wait PSW 00020001 80000000 00000000 0010F63C The easiest solution is simply to check if tty is NULL in the tasklet. If it is NULL nothing is to do (no tty attached), otherwise tty_wakeup() can be called, since we hold a reference to the tty. This is not nice... but it is a small patch and it works. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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Alex Deucher authored
Fixes: https://bugzilla.kernel.org/show_bug.cgi?id=50431Reported-by: David Binderman <dcb314@hotmail.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Cc: stable@vger.kernel.org Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
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Colin Ian King authored
Passing a NULL id causes a NULL pointer deference in writers such as erst_writer and efi_pstore_write because they expect to update this id. Pass a dummy id instead. This avoids a cascade of oopses caused when the initial pstore_console_write passes a null which in turn causes writes to the console causing further oopses in subsequent pstore_console_write calls. Signed-off-by: Colin Ian King <colin.king@canonical.com> Acked-by: Kees Cook <keescook@chromium.org> Cc: stable@vger.kernel.org Signed-off-by: Anton Vorontsov <anton.vorontsov@linaro.org>
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Mark Brown authored
Merge remote-tracking branches 'regulator/fix/gpio', 'regulator/fix/put' and 'regulator/fix/supp-volt' into tmp
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Marek Szyprowski authored
regulator_is_supported_voltage() should return true only if the voltage of fixed/constant regulator is between min_uV and max_uV. Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Cc: stable@vger.kernel.org
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- 14 Nov, 2012 8 commits
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Axel Lin authored
The spi_device_id table is supposed to be zero-terminated. Signed-off-by: Axel Lin <axel.lin@ingics.com> Cc: stable <stable@vger.kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linuxLinus Torvalds authored
Pull power tools fixes from Len Brown: "A pair of power tools patches -- a 3.7 regression fix plus a bug fix." * 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux: tools/power turbostat: graceful fail on garbage input tools/power turbostat: Repair Segmentation fault when using -i option
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git://git.linux-mips.org/pub/scm/ralf/upstream-linusLinus Torvalds authored
Pull MIPS update from Ralf Baechle: "To avoid unnecessary risk and work the preemption fixes are combined with some preparatory work that isn't strictly required. So it's really just 3 fixes: - Get is_compat_task() to do the right thing while simplifying it. The unnecessary complexity hid a rarely striking bug which could be triggered by ext3/ext4 under certain circumstances. - Resolve a preemption issue in the irqflags.h functions for kernels built to support pre-MIPS32 / pre-MIPS64 Release 2 processors. - Fix the interrupt number of the MIPS Malta's CBUS UART." * 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: MIPS: Malta: Fix interupt number of CBUS UART. MIPS: Make irqflags.h functions preempt-safe for non-mipsr2 cpus MIPS: Remove irqflags.h dependency from bitops.h MIPS: bitops.h: Change use of 'unsigned short' to 'int' MIPS: compat: Delete now unused TIF_32BIT. MIPS: compat: Implement is_compat_task() by testing for 32-bit address space. MIPS: compat: Fix use of TIF_32BIT_ADDR vs _TIF_32BIT_ADDR
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git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroupLinus Torvalds authored
Pull cgroup fixes from Tejun Heo: "This contains two fix patches for device_cgroup. One fixes a regression introduced earlier in 3.7 cycle where device_cgroup could try to dereference the NULL parent of the root cgroup. The other one is RCU usage fix." * 'for-3.7-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup: device_cgroup: fix RCU usage device_cgroup: fix unchecked cgroup parent usage
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Paul Mackerras authored
Commit bdb498c2 "TTY: hvc_console, add tty install" took the port refcounting out of hvc_open()/hvc_close(), but failed to remove the kref_put() and tty_kref_put() calls in hvc_hangup() that were there to remove the extra references that hvc_open() had taken. The result was that doing a vhangup() when the current terminal was a hvc_console, then closing the current terminal, would end up calling destroy_hvc_struct() and making the port disappear entirely. This meant that Fedora 17 systems would boot up but then not display the login prompt on the console, and attempts to open /dev/hvc0 would give a "No such device" error. This fixes it by removing the extra kref_put() and tty_kref_put() calls. Signed-off-by: Paul Mackerras <paulus@samba.org> Acked-by: Jiri Slaby <jslaby@suse.cz> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Takashi Iwai authored
The recent change for USB-audio disconnection race fixes introduced a mutex deadlock again. There is a circular dependency between chip->shutdown_rwsem and pcm->open_mutex, depicted like below, when a device is opened during the disconnection operation: A. snd_usb_audio_disconnect() -> card.c::register_mutex -> chip->shutdown_rwsem (write) -> snd_card_disconnect() -> pcm.c::register_mutex -> pcm->open_mutex B. snd_pcm_open() -> pcm->open_mutex -> snd_usb_pcm_open() -> chip->shutdown_rwsem (read) Since the chip->shutdown_rwsem protection in the case A is required only for turning on the chip->shutdown flag and it doesn't have to be taken for the whole operation, we can reduce its window in snd_usb_audio_disconnect(). Reported-by: Jiri Slaby <jslaby@suse.cz> Cc: <stable@vger.kernel.org> Signed-off-by: Takashi Iwai <tiwai@suse.de>
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Charles Keepax authored
When regulator_register fails and exits through the scrub path the regulator_put function was called whilst holding the regulator_list_mutex, causing deadlock. This patch adds a private version of the regulator_put function which can be safely called whilst holding the mutex, replacing the aforementioned call. Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
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Dan Carpenter authored
There is a precedence bug because | has higher precedence than ?:. This code was cut and pasted and I fixed a similar bug a few days ago. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
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- 13 Nov, 2012 10 commits
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Guenter Roeck authored
When allocating the memory for i2c busses, the code checked the wrong variable and thus never detected if there was a memory error. Signed-off-by: Guenter Roeck <linux@roeck-us.net> Cc: stable@vger.kernel.org Signed-off-by: Jean Delvare <khali@linux-fr.org>
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Jean Delvare authored
I have been maintaining the i2c subsystem for 7 years now, it's about time to let someone else take over. Just before I leave, I would like to thank several individuals who made this possible at all: * Greg Kroah-Hartman, for his faith in my potential subsystem maintainer skills. Greg, I hope I met your expectations. * Late David Brownell, for helping me convert the i2c subsystem to the standard device driver model. Rest in peace David, we're missing you. * Ben Dooks, for stepping in when I asked for someone to take care of the huge flow of new i2c adapter drivers for embedded systems. * Wolfram Sang, for joining the crew when it became clear that there was more review work than Ben and myself could deal with. I hope I did not forget anyone, please forgive me if I did. Another big thank is due to Wolfram again, who quickly proposed to take over as the main i2c subsystem maintainer. This will allow for a smooth and fast transition. Note that I will keep maintaining all I2C/SMBus controller drivers for PC systems as well as a few others. I am hereby updating MAINTAINERS accordingly. I'll also keep maintaining user-space i2c-tools. Signed-off-by: Jean Delvare <khali@linux-fr.org> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Ben Dooks <ben-linux@fluff.org> Acked-by: Wolfram Sang <w.sang@pengutronix.de>
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Colin Cross authored
Commit 6bd4a5d9 changed the ANDROID_ALARM_GET_TIME ioctls from IOW to IOR. While technically correct, the _IOC_DIR bits are ignored by alarm_ioctl, so the commit breaks a userspace ABI used by all existing Android devices for a purely cosmetic reason. Revert it. Cc: stable <stable@vger.kernel.org> Cc: Dae S. Kim <dae@velatum.com> Signed-off-by: Colin Cross <ccross@android.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Ralf Baechle authored
The CBUS UART's interrupt number was wrong conflicting with the interrupt being tied to the Intel PIIX4. Since the PIIX4's interrupt is registered before the CBUS UART which is not being used on most systems this would not be noticed. Attempts to open the ttyS2 CBUS UART would result in: genirq: Flags mismatch irq 18. 00000000 (serial) vs. 00010000 (XT-PIC cascade) serial_link_irq_chain: request failed: -16 for irq: 18 Qemu was written to match the kernel so will need to be fixed also. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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Jani Nikula authored
There are laptops out there that need the eDP bpc from VBT. This is effectively a revert of commit 4344b813 Author: Daniel Vetter <daniel.vetter@ffwll.ch> Date: Fri Aug 10 11:10:20 2012 +0200 drm/i915: ignore eDP bpc settings from vbt but putting the VBT check after the EDID check to see them both in dmesg if this clamps more than the EDID. We have enough history with bpc clamping to warrant the extra debug info. Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=47641 Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=56401Signed-off-by: Jani Nikula <jani.nikula@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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Heiko Carstens authored
Select HAVE_ALIGNED_STRUCT_PAGE on s390, so that the slub allocator can make use of compare and swap double for lockless updates. This increases the size of struct page to 64 bytes (instead of 56 bytes), however the performance gain justifies the increased size: - now excactly four struct pages fit into a single cache line; the case that accessing a struct page causes two cache line loads does not exist anymore. - calculating the offset of a struct page within the memmap array is only a simple shift instead of a more expensive multiplication. A "hackbench 200 process 200" run on a 32 cpu system did show an 8% runtime improvement. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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Heiko Carstens authored
access_ok() returns always "true" on s390. Therefore all access_ok() invocations are rather pointless. However when walking page tables we need to make sure that everything is within bounds of the ASCE limit of the task's address space. So remove the access_ok() call and add the same check we have in get_user_pages_fast(). Reviewed-by: Gerald Schaefer <gerald.schaefer@de.ibm.com> Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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Heiko Carstens authored
When walking page tables we need to make sure that everything is within bounds of the ASCE limit of the task's address space. Otherwise we might calculate e.g. a pud pointer which is not within a pud and dereference it. So check against TASK_SIZE (which is the ASCE limit) before walking page tables. Reviewed-by: Gerald Schaefer <gerald.schaefer@de.ibm.com> Cc: stable@vger.kernel.org Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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Dan Carpenter authored
I don't think this works as intended. '|' higher precedence than ?: so the bitwize OR "0 | (val & STR_MOST)" is a no-op. I have re-written it to be more clear. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
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git://git.kernel.org/pub/scm/linux/kernel/git/broonie/soundTakashi Iwai authored
ASoC: Fixes for v3.7 A few small fixes plus a large but simple change for WM5102 which writes out a bunch of register updates to the device when we enable the clock as recommended following chip evaluation.
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