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2014-03-06Merge back earlier 'pm-cpufreq' material.Rafael J. Wysocki4-97/+76
2014-03-06cpufreq: Initialize governor for a new policy under policy->rwsemViresh Kumar1-0/+2
policy->rwsem is used to lock access to all parts of code modifying struct cpufreq_policy, but it's not used on a new policy created by __cpufreq_add_dev(). Because of that, if cpufreq_update_policy() is called in a tight loop on one CPU in parallel with offline/online of another CPU, then the following crash can be triggered: Unable to handle kernel NULL pointer dereference at virtual address 00000020 pgd = c0003000 [00000020] *pgd=80000000004003, *pmd=00000000 Internal error: Oops: 206 [#1] PREEMPT SMP ARM PC is at __cpufreq_governor+0x10/0x1ac LR is at cpufreq_update_policy+0x114/0x150 ---[ end trace f23a8defea6cd706 ]--- Kernel panic - not syncing: Fatal exception CPU0: stopping CPU: 0 PID: 7136 Comm: mpdecision Tainted: G D W 3.10.0-gd727407-00074-g979ede8 #396 [<c0afe180>] (notifier_call_chain+0x40/0x68) from [<c02a23ac>] (__blocking_notifier_call_chain+0x40/0x58) [<c02a23ac>] (__blocking_notifier_call_chain+0x40/0x58) from [<c02a23d8>] (blocking_notifier_call_chain+0x14/0x1c) [<c02a23d8>] (blocking_notifier_call_chain+0x14/0x1c) from [<c0803c68>] (cpufreq_set_policy+0xd4/0x2b8) [<c0803c68>] (cpufreq_set_policy+0xd4/0x2b8) from [<c0803e7c>] (cpufreq_init_policy+0x30/0x98) [<c0803e7c>] (cpufreq_init_policy+0x30/0x98) from [<c0805a18>] (__cpufreq_add_dev.isra.17+0x4dc/0x7a4) [<c0805a18>] (__cpufreq_add_dev.isra.17+0x4dc/0x7a4) from [<c0805d38>] (cpufreq_cpu_callback+0x58/0x84) [<c0805d38>] (cpufreq_cpu_callback+0x58/0x84) from [<c0afe180>] (notifier_call_chain+0x40/0x68) [<c0afe180>] (notifier_call_chain+0x40/0x68) from [<c02812dc>] (__cpu_notify+0x28/0x44) [<c02812dc>] (__cpu_notify+0x28/0x44) from [<c0aeed90>] (_cpu_up+0xf4/0x1dc) [<c0aeed90>] (_cpu_up+0xf4/0x1dc) from [<c0aeeed4>] (cpu_up+0x5c/0x78) [<c0aeeed4>] (cpu_up+0x5c/0x78) from [<c0aec808>] (store_online+0x44/0x74) [<c0aec808>] (store_online+0x44/0x74) from [<c03a40f4>] (sysfs_write_file+0x108/0x14c) [<c03a40f4>] (sysfs_write_file+0x108/0x14c) from [<c03517d4>] (vfs_write+0xd0/0x180) [<c03517d4>] (vfs_write+0xd0/0x180) from [<c0351ca8>] (SyS_write+0x38/0x68) [<c0351ca8>] (SyS_write+0x38/0x68) from [<c0205de0>] (ret_fast_syscall+0x0/0x30) Fix that by taking locks at appropriate places in __cpufreq_add_dev() as well. Reported-by: Saravana Kannan <skannan@codeaurora.org> Suggested-by: Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> [rjw: Changelog] Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-03-06cpufreq: Initialize policy before making it available for others to useViresh Kumar1-14/+14
Policy must be fully initialized before it is being made available for use by others. Otherwise cpufreq_cpu_get() would be able to grab a half initialized policy structure that might not have affected_cpus (for example) populated. Then, anybody accessing those fields will get a wrong value and that will lead to unpredictable results. In order to fix this, do all the necessary initialization before we make the policy structure available via cpufreq_cpu_get(). That will guarantee that any code accessing fields of the policy will get correct data from them. Reported-by: Saravana Kannan <skannan@codeaurora.org> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> [rjw: Changelog] Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-03-06cpufreq: use cpufreq_cpu_get() to avoid cpufreq_get() race conditionsAaron Plattner1-14/+7
If a module calls cpufreq_get while cpufreq is initializing, it's possible for it to be called after cpufreq_driver is set but before cpufreq_cpu_data is written during subsys_interface_register. This happens because cpufreq_get doesn't take the cpufreq_driver_lock around its use of cpufreq_cpu_data. Fix this by using cpufreq_cpu_get(cpu) to look up the policy rather than reading it out of cpufreq_cpu_data directly. cpufreq_cpu_get() takes the appropriate locks to prevent this race from happening. Since it's possible for policy to be NULL if the caller passes in an invalid CPU number or calls the function before cpufreq is initialized, delete the BUG_ON(!policy) and simply return 0. Don't try to return -ENOENT because that's negative and the function returns an unsigned integer. References: https://bbs.archlinux.org/viewtopic.php?id=177934 Signed-off-by: Aaron Plattner <aplattner@nvidia.com> Cc: 3.13+ <stable@vger.kernel.org> # 3.13+ Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-03-03Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linuxLinus Torvalds18-62/+107
Pull drm fixes from Dave Airlie: "Not a huge amount happening, some MAINTAINERS updates, radeon, vmwgfx and tegra fixes" * 'drm-fixes' of git://people.freedesktop.org/~airlied/linux: drm/vmwgfx: avoid null pointer dereference at failure paths drm/vmwgfx: Make sure backing mobs are cleared when allocated. Update driver date. drm/vmwgfx: Remove some unused surface formats drm/radeon: enable speaker allocation setup on dce3.2 drm/radeon: change audio enable logic drm/radeon: fix audio disable on dce6+ drm/radeon: free uvd ring on unload drm/radeon: disable pll sharing for DP on DCE4.1 drm/radeon: fix missing bo reservation drm/radeon: print the supported atpx function mask MAINTAINERS: update drm git tree entry MAINTAINERS: add entry for drm radeon driver drm/tegra: Add guard to avoid double disable/enable of RGB outputs gpu: host1x: do not check previously handled gathers drm/tegra: fix typo 'CONFIG_TEGRA_DRM_FBDEV'
2014-03-03Merge tag 'usb-3.14-rc5' of ↵Linus Torvalds3-3/+18
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb Pull USB fixes from Greg KH: "Here are 2 USB patches for 3.14-rc5, one a new device id, and the other fixes a reported problem with threaded irqs and the USB EHCI driver" * tag 'usb-3.14-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: usb: ehci: fix deadlock when threadirqs option is used USB: ftdi_sio: add Cressi Leonardo PID
2014-03-03Merge tag 'staging-3.14-rc5' of ↵Linus Torvalds9-39/+38
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging Pull staging tree fixes from Greg KH: "Here are a few IIO fixes, and a new device id for a staging driver for 3.14-rc5. All have been in linux-next for a while, I did a final merge to get the IIO fixes into this tree, they were incorrectly in the char-misc tree for a few weeks, and I forgot to tell you to pull them from there. This makes it a single pull request for you" * tag 'staging-3.14-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: staging: r8188eu: Add new device ID staging:iio:adc:MXS:LRADC: fix touchscreen statemachine iio:gyro: bug on L3GD20H gyroscope support iio: cm32181: Change cm32181 ambient light sensor driver iio: cm36651: Fix read/write integration time function.
2014-03-03Merge branch 'drm-fixes-3.14' of git://people.freedesktop.org/~agd5f/linux ↵Dave Airlie11-35/+72
into drm-fixes more radeon fixes * 'drm-fixes-3.14' of git://people.freedesktop.org/~agd5f/linux: drm/radeon: enable speaker allocation setup on dce3.2 drm/radeon: change audio enable logic drm/radeon: fix audio disable on dce6+ drm/radeon: free uvd ring on unload drm/radeon: disable pll sharing for DP on DCE4.1 drm/radeon: fix missing bo reservation drm/radeon: print the supported atpx function mask
2014-03-03Merge iio fixes into staging-linusGreg Kroah-Hartman7-39/+36
These I forgot about before, but need to get into 3.14-final. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-03-02drm/vmwgfx: avoid null pointer dereference at failure pathsAlexey Khoroshilov1-16/+19
vmw_takedown_otable_base() and vmw_mob_unbind() check for potential vmw_fifo_reserve() failure and print error message, but then immediately dereference NULL pointer. Found by Linux Driver Verification project (linuxtesting.org). Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru> Reviewed-by: Thomas Hellstrom <thellstrom@vmware.com>
2014-03-02drm/vmwgfx: Make sure backing mobs are cleared when allocated. Update driver ↵Thomas Hellstrom2-3/+2
date. Backing mob contents is propagated to user-space, so make sure backing mobs are cleared when allocated. This also accidently fix rendering errors with celestia when emulating legacy mode. Also update driver date. Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com> Reviewed-by: Brian Paul <brianp@vmware.com>
2014-03-02drm/vmwgfx: Remove some unused surface formatsThomas Hellstrom1-6/+1
These formats are deprecated. Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com> Reviewed-by: Brian Paul <brianp@vmware.com>
2014-03-02Merge git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pendingLinus Torvalds7-62/+171
Pull SCSI target fixes from Nicholas Bellinger: "The bulk of the series are bugfixes for qla2xxx target NPIV support that went in for v3.14-rc1. Also included are a few DIF related fixes, a qla2xxx fix (Cc'ed to stable) from Greg W., and vhost/scsi protocol version related fix from Venkatesh. Also just a heads up that a series to address a number of issues with iser-target active I/O reset/shutdown is still being tested, and will be included in a separate -rc6 PULL request" * git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending: vhost/scsi: Check LUN structure byte 0 is set to 1, per spec qla2xxx: Fix kernel panic on selective retransmission request Target/sbc: Don't use sg as iterator in sbc_verify_read target: Add DIF sense codes in transport_generic_request_failure target/sbc: Fix sbc_dif_copy_prot addr offset bug tcm_qla2xxx: Fix NAA formatted name for NPIV WWPNs tcm_qla2xxx: Perform configfs depend/undepend for base_tpg tcm_qla2xxx: Add NPIV specific enable/disable attribute logic qla2xxx: Check + fail when npiv_vports_inuse exists in shutdown qla2xxx: Fix qlt_lport_register base_vha callback race
2014-03-02Merge branch 'fixes' of git://git.infradead.org/users/vkoul/slave-dmaLinus Torvalds2-1/+4
Pull slave-dma fixes from Vinod Koul: "This request brings you two small fixes. First one for fixing dereference of freed descriptor and second for fixing sdma bindings for it to work for imx25. I was planning to send this about 10days ago but then I had to proceed on my paternity leave and didnt get chance to send this. Now got a bit of time from dady duties :)" * 'fixes' of git://git.infradead.org/users/vkoul/slave-dma: dma: sdma: Add imx25 compatible dma: ste_dma40: don't dereference free:d descriptor
2014-03-02Merge tag 'pm+acpi-3.14-rc5' of ↵Linus Torvalds3-47/+51
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull ACPI and power management fixes from Rafael Wysocki: "These three commits fix a recent intel_pstate regression and two old bugs that should be fixed in -stable too, one in the ACPI processor driver and one in the firmare loader. Specifics: - One of the recent intel_pstate driver fixes introduced a rounding error that on some systems causes the frequency to be stuck at the lowest level forever. Fix from Dirk Brandewie. - The firmware_class driver's PM notifier doesn't handle the PM_RESTORE_PREPARE event during hibernation image restore and that leads to a deadlock on umhelper_sem in __usermodehelper_disable(). Fix from Sebastian Capella. - acpi_processor_set_throttling() abuses set_cpus_allowed_ptr() in a nasty way which triggers the WARN_ON_ONCE() in wq_worker_waking_up() among other things. Fix from Lan Tianyu" * tag 'pm+acpi-3.14-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: ACPI / processor: Rework processor throttling with work_on_cpu() PM / hibernate: Fix restore hang in freeze_processes() intel_pstate: Change busy calculation to use fixed point math.
2014-03-02cpufreq: stats: Refactor common code into __cpufreq_stats_create_table()Saravana Kannan1-13/+9
cpufreq_frequency_get_table() is called from all callers of __cpufreq_stats_create_table(). So, move it inside. Suggested-by: Viresh Kumar <viresh.kumar@linaro.org> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Saravana Kannan <skannan@codeaurora.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-03-02cpufreq: stats: Fix error handling in __cpufreq_stats_create_table()Saravana Kannan1-1/+3
Remove sysfs group if __cpufreq_stats_create_table() fails after creating one. Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Saravana Kannan <skannan@codeaurora.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-03-02cpufreq: stats: Remove redundant cpufreq_cpu_get() callSaravana Kannan1-11/+1
__cpufreq_stats_create_table always gets pass the valid and real policy struct. So, there's no need to call cpufreq_cpu_get() to get the policy again. Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Saravana Kannan <skannan@codeaurora.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-03-02intel_pstate: fix pid_reset to use fixed point valuesDirk Brandewie1-1/+1
commit d253d2a526 (Improve accuracy by not truncating until final result), changed internal variables of the PID to be fixed point numbers. Update the pid_reset() to reflect this change. Signed-off-by: Dirk Brandewie <dirk.j.brandewie@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-03-02intel_pstate: remove unneeded sample buffersDirk Brandewie1-13/+11
Remove unneeded sample buffers, intel_pstate operates on the most recent sample only. This save some memory and make the code more readable. Signed-off-by: Dirk Brandewie <dirk.j.brandewie@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-03-01Merge tag 'fixes-for-3.14d' of ↵Greg Kroah-Hartman1-0/+1
git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-linus Jonathan writes: Fourth set of IIO fixes for the 3.14 kernel. A single line patch fixing a regression that was introduced in 3.13 in the reworking of the mxs touch screen and ADC drivers to be interrupt rather than polling driven. It resulted in a stray double reporting of the release coordinate in the touch screen driver. The bug lay in the adc side of the driver which left the statemachine in the wrong state.
2014-03-01cpufreq: Return error if ->get() failed in cpufreq_update_policy()Viresh Kumar1-0/+5
cpufreq_update_policy() calls cpufreq_driver->get() to get current frequency of a CPU and it is not supposed to fail or return zero. Return error in case that happens. Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-03-01cpufreq: enable ARM drivers on arm64Rob Herring1-1/+1
Enable cpufreq and power kconfig menus on arm64 along with arm cpufreq drivers. The power menu is needed for OPP support. At least on Calxeda systems, the same cpufreq driver is used for arm and arm64 based systems. Signed-off-by: Rob Herring <rob.herring@calxeda.com> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Mark Brown <broonie@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-02-28Merge tag 'dm-3.14-fixes-1' of ↵Linus Torvalds9-40/+89
git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm Pull device mapper fixes from Mike Snitzer: "A few dm-cache fixes, an invalid ioctl handling fix for dm multipath, a couple immutable biovec fixups for dm mirror, and a few dm-thin fixes. There will likely be additional dm-thin metadata and data resize fixes to include in 3.14-rc6 next week. Note to stable-minded folks: Immutable biovecs were introduced in 3.14, so the related fixups for dm mirror are not needed in stable@ kernels" * tag 'dm-3.14-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm: dm cache: fix truncation bug when mapping I/O to >2TB fast device dm thin: allow metadata space larger than supported to go unused dm mpath: fix stalls when handling invalid ioctls dm thin: fix the error path for the thin device constructor dm raid1: fix immutable biovec related BUG when retrying read bio dm io: fix I/O to multiple destinations dm thin: avoid metadata commit if a pool's thin devices haven't changed dm cache: do not add migration to completed list before unhooking bio dm cache: move hook_info into common portion of per_bio_data structure
2014-02-28Merge tag 'sound-3.14-rc5' of ↵Linus Torvalds2-31/+0
git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound Pull sound fixes from Takashi Iwai: "It's a bad habit to get a higher volume of fixes often lately, but things happen again. All commits found here are real bug fixes, and are mostly trivial. Most of changes in ASoC are the fixes for enum items due to the wrong API usages, in addition to a few DAPM mutex deadlock and other fixes. In HD-audio, only fixups for HP laptops. Although diffstat shows much, the changes are simple: there are just so many different device entries there" * tag 'sound-3.14-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: ASoC: sta32x: Fix wrong enum for limiter2 release rate ASoC: da732x: Mark DC offset control registers volatile ALSA: hda/realtek - Add more entry for enable HP mute led ALSA: hda - Add a fixup for HP Folio 13 mute LED ASoC: wm8958-dsp: Fix firmware block loading ASoC: sta32x: Fix cache sync ALSA: hda/realtek - Add more entry for enable HP mute led ASoC: dapm: Add locking to snd_soc_dapm_xxxx_pin functions Input - arizona-haptics: Fix double lock of dapm_mutex ASoC: wm8400: Fix the wrong number of enum items ASoC: isabelle: Fix the wrong number of items in enum ctls ASoC: ad1980: Fix wrong number of items for capture source ASoC: wm8994: Fix the wrong number of enum items ASoC: wm8900: Fix the wrong number of enum items ASoC: wm8770: Fix wrong number of enum items ASoC: sta32x: Fix array access overflow ASoC: dapm: Correct regulator bypass error messages
2014-02-28Merge tag 'edac_fixes_for_3.14' of ↵Linus Torvalds2-20/+27
git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp Pull EDAC fixes from Borislav Petkov: "Two fixes below for PCI devices disappearing when a reference count underflow happens after a couple of insmod/rmmod cycles in succession" * tag 'edac_fixes_for_3.14' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp: i7300_edac: Fix device reference count i7core_edac: Fix PCI device reference count
2014-02-28dm cache: fix truncation bug when mapping I/O to >2TB fast deviceHeinz Mauelshagen1-2/+3
When remapping a block to the cache's fast device that is larger than 2TB we must not truncate the destination sector to 32bits. The 32bit temporary result of from_cblock() was being overflowed in remap_to_cache() due to the logical left shift. Use an intermediate 64bit type to store the 32bit from_cblock() result to fix the overflow. Signed-off-by: Heinz Mauelshagen <heinzm@redhat.com> Signed-off-by: Mike Snitzer <snitzer@redhat.com> Cc: stable@vger.kernel.org
2014-02-28Merge branches 'pm-cpufreq', 'pm-hibernate' and 'acpi-processor'Rafael J. Wysocki2-37/+33
* pm-cpufreq: intel_pstate: Change busy calculation to use fixed point math. * pm-hibernate: PM / hibernate: Fix restore hang in freeze_processes() * acpi-processor: ACPI / processor: Rework processor throttling with work_on_cpu()
2014-02-27drm/radeon: enable speaker allocation setup on dce3.2Alex Deucher1-3/+0
Now that we disable audio while setting up the audio hw, we should be able to set this up without hangs. Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Reviewed-by: Christian König <christian.koenig@amd.com>
2014-02-27drm/radeon: change audio enable logicAlex Deucher5-27/+44
Disable audio around audio hw setup. This may avoid hangs on certain asics. Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Reviewed-by: Christian König <christian.koenig@amd.com>
2014-02-27drm/radeon: fix audio disable on dce6+Alex Deucher1-1/+1
Properly clear the enable bit when audio disable is requested. Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Reviewed-by: Christian König <christian.koenig@amd.com> Cc: stable@vger.kernel.org
2014-02-27drm/radeon: free uvd ring on unloadJerome Glisse3-2/+4
Need to free the uvd ring. Also reshuffle gart tear down to happen after uvd tear down. Signed-off-by: Jérôme Glisse <jglisse@redhat.com> Cc: stable@vger.kernel.org Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2014-02-27drm/radeon: disable pll sharing for DP on DCE4.1Alex Deucher1-1/+15
Causes display problems. We had already disabled sharing for non-DP displays. Based on a patch from: Niels Ole Salscheider <niels_ole@salscheider-online.de> bug: https://bugzilla.kernel.org/show_bug.cgi?id=58121 Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Cc: stable@vger.kernel.org
2014-02-27drm/radeon: fix missing bo reservationChristian König1-0/+6
Otherwise we might get a crash here. Signed-off-by: Christian König <christian.koenig@amd.com> Cc: stable@vger.kernel.org Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2014-02-27drm/radeon: print the supported atpx function maskAlex Deucher1-1/+2
Print the supported functions mask in addition to the version. This is useful in debugging PX problems since we can see what functions are available. Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Cc: stable@vger.kernel.org
2014-02-27Merge tag 'metag-fixes-v3.14' of ↵Linus Torvalds2-2/+2
git://git.kernel.org/pub/scm/linux/kernel/git/jhogan/metag Pull Metag arch and asm-generic fixes from James Hogan: - Add the new sched_setattr/sched_getattr syscalls to the asm-generic syscall list, which is used by arc, arm64, c6x, hexagon, metag, openrisc, score, tile, and unicore32. - An IRQ affinity bug fix for metag to prevent interrupts being vectored to offline CPUs when their affinity is changed via /proc/irq/ (thanks tglx). * tag 'metag-fixes-v3.14' of git://git.kernel.org/pub/scm/linux/kernel/git/jhogan/metag: irq-metag*: stop set_affinity vectoring to offline cpus asm-generic: add sched_setattr/sched_getattr syscalls
2014-02-27Merge tag 'pwm/for-3.14-rc5' of ↵Linus Torvalds1-1/+3
git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm Pull pwm fix from Thierry Reding: "Just a single trivial patch to plug a memory leak in an error path" * tag 'pwm/for-3.14-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm: pwm: lp3943: Fix potential memory leak during request
2014-02-27Merge tag 'upstream-3.14-rc5' of git://git.infradead.org/linux-ubifsLinus Torvalds1-4/+4
Pull ubifs fix from Artem Bityutskiy: "Just a single fix for the UBI module unload path which makes sure we do not touch freed memory" * tag 'upstream-3.14-rc5' of git://git.infradead.org/linux-ubifs: UBI: fix some use after free bugs
2014-02-27dm thin: allow metadata space larger than supported to go unusedMike Snitzer5-19/+37
It was always intended that a user could provide a thin metadata device that is larger than the max supported by the on-disk format. The extra space would just go unused. Unfortunately that never worked. If the user attempted to use a larger metadata device on creation they would get an error like the following: device-mapper: space map common: space map too large device-mapper: transaction manager: couldn't create metadata space map device-mapper: thin metadata: tm_create_with_sm failed device-mapper: table: 252:17: thin-pool: Error creating metadata object device-mapper: ioctl: error adding target to table Fix this by allowing the initial metadata space map creation to cap its size at the max number of blocks supported (DM_SM_METADATA_MAX_BLOCKS). get_metadata_dev_size() must also impose DM_SM_METADATA_MAX_BLOCKS (via THIN_METADATA_MAX_SECTORS), otherwise extending metadata would cap at THIN_METADATA_MAX_SECTORS_WARNING (which is larger than supported). Also, the calculation for THIN_METADATA_MAX_SECTORS didn't account for the sizeof the disk_bitmap_header. So the supported maximum metadata size is a bit smaller (reduced from 33423360 to 33292800 sectors). Lastly, remove the "excess space will not be used" warning message from get_metadata_dev_size(); it resulted in printing the warning multiple times. Factor out warn_if_metadata_device_too_big(), call it from pool_ctr() and maybe_resize_metadata_dev(). Signed-off-by: Mike Snitzer <snitzer@redhat.com> Acked-by: Joe Thornber <ejt@redhat.com>
2014-02-27cpufreq: Mark function as static in cpufreq.cRashika Kheria1-1/+1
Mark function as static in cpufreq.c because it is not used outside this file. This eliminates the following warning in cpufreq.c: drivers/cpufreq/cpufreq.c:355:9: warning: no previous prototype for ‘show_boost’ [-Wmissing-prototypes] Signed-off-by: Rashika Kheria <rashika.kheria@gmail.com> Reviewed-by: Josh Triplett <josh@joshtriplett.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-02-27usb: ehci: fix deadlock when threadirqs option is usedStanislaw Gruszka1-3/+10
ehci_irq() and ehci_hrtimer_func() can deadlock on ehci->lock when threadirqs option is used. To prevent the deadlock use spin_lock_irqsave() in ehci_irq(). This change can be reverted when hrtimer callbacks become threaded. Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com> Cc: stable <stable@vger.kernel.org> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-02-27USB: ftdi_sio: add Cressi Leonardo PIDJoerg Dorchain2-0/+8
Hello, the following patch adds an entry for the PID of a Cressi Leonardo diving computer interface to kernel 3.13.0. It is detected as FT232RL. Works with subsurface. Signed-off-by: Joerg Dorchain <joerg@dorchain.net> Cc: stable <stable@vger.kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-02-27ACPI / processor: Rework processor throttling with work_on_cpu()Lan Tianyu1-37/+32
acpi_processor_set_throttling() uses set_cpus_allowed_ptr() to make sure that the (struct acpi_processor)->acpi_processor_set_throttling() callback will run on the right CPU. However, the function may be called from a worker thread already bound to a different CPU in which case that won't work. Make acpi_processor_set_throttling() use work_on_cpu() as appropriate instead of abusing set_cpus_allowed_ptr(). Reported-and-tested-by: Jiri Olsa <jolsa@redhat.com> Signed-off-by: Lan Tianyu <tianyu.lan@intel.com> Cc: All applicable <stable@vger.kernel.org> [rjw: Changelog] Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-02-27Merge back earlier 'pm-cpufreq' material.Rafael J. Wysocki1-56/+44
2014-02-26pwm: lp3943: Fix potential memory leak during requestChristian Engelmayer1-1/+3
Fix a memory leak in the lp3943_pwm_request_map() error handling path. Make sure already allocated pwm map memory is freed correctly. Detected by Coverity: CID 1162829. Signed-off-by: Christian Engelmayer <cengelma@gmx.at> Acked-by: Milo Kim <milo.kim@ti.com> Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
2014-02-26dm mpath: fix stalls when handling invalid ioctlsHannes Reinecke1-2/+5
An invalid ioctl will never be valid, irrespective of whether multipath has active paths or not. So for invalid ioctls we do not have to wait for multipath to activate any paths, but can rather return an error code immediately. This fix resolves numerous instances of: udevd[]: worker [] unexpectedly returned with status 0x0100 that have been seen during testing. Signed-off-by: Hannes Reinecke <hare@suse.de> Signed-off-by: Mike Snitzer <snitzer@redhat.com> Cc: stable@vger.kernel.org
2014-02-26PM / hibernate: Fix restore hang in freeze_processes()Sebastian Capella1-0/+1
During restore, pm_notifier chain are called with PM_RESTORE_PREPARE. The firmware_class driver handler fw_pm_notify does not have a handler for this. As a result, it keeps a reader on the kmod.c umhelper_sem. During freeze_processes, the call to __usermodehelper_disable tries to take a write lock on this semaphore and hangs waiting. Signed-off-by: Sebastian Capella <sebastian.capella@linaro.org> Acked-by: Ming Lei <ming.lei@canonical.com> Cc: All applicable <stable@vger.kernel.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-02-26intel_pstate: Change busy calculation to use fixed point math.Dirk Brandewie1-10/+18
Commit fcb6a15c2e (intel_pstate: Take core C0 time into account for core busy calculation) introduced a regression on some processor SKUs supported by intel_pstate. This was due to the truncation caused by using integer math to calculate core busy and C0 percentages. On a i7-4770K processor operating at 800Mhz going to 100% utilization the percent busy of the CPU using integer math is 22%, but it actually is 22.85%. This value scaled to the current frequency returned 97 which the PID interpreted as no error and did not adjust the P state. Tested on i7-4770K, i7-2600, i5-3230M. Fixes: fcb6a15c2e7e (intel_pstate: Take core C0 time into account for core busy calculation) References: https://lkml.org/lkml/2014/2/19/626 References: https://bugzilla.kernel.org/show_bug.cgi?id=70941 Signed-off-by: Dirk Brandewie <dirk.j.brandewie@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-02-26Merge branch 'akpm' (patches from Andrew Morton)Linus Torvalds2-3/+3
Merge misc fixes from Andrew Morton. * emailed patches from Andrew Morton akpm@linux-foundation.org>: MAINTAINERS: change mailing list address for Altera UART drivers Makefile: fix build with make 3.80 again MAINTAINERS: update L: misuses Makefile: fix extra parenthesis typo when CC_STACKPROTECTOR_REGULAR is enabled ipc,mqueue: remove limits for the amount of system-wide queues memcg: change oom_info_lock to mutex mm, thp: fix infinite loop on memcg OOM drivers/fmc/fmc-write-eeprom.c: fix decimal permissions drivers/iommu/omap-iommu-debug.c: fix decimal permissions mm, hwpoison: release page on PageHWPoison() in __do_fault()
2014-02-26drivers/fmc/fmc-write-eeprom.c: fix decimal permissionsJoe Perches1-1/+1
This 444 should have been octal. Signed-off-by: Joe Perches <joe@perches.com> Cc: Alessandro Rubini <rubini@gnudd.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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