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2012-09-14vfs: make O_PATH file descriptors usable for 'fstat()'Linus Torvalds
We already use them for openat() and friends, but fstat() also wants to be able to use O_PATH file descriptors. This should make it more directly comparable to the O_SEARCH of Solaris. Note that you could already do the same thing with "fstatat()" and an empty path, but just doing "fstat()" directly is simpler and faster, so there is no reason not to just allow it directly. See also commit 332a2e1244bd, which did the same thing for fchdir, for the same reasons. Reported-by: ольга крыжановская <olga.kryzhanovska@gmail.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: stable@kernel.org # O_PATH introduced in 3.0+ Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-09-13Merge tag 'sound-3.6' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound Pull sound fixes from Takashi Iwai: "Just a few small / trivial regression fixes at this time." * tag 'sound-3.6' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: ALSA: ice1724: Use linear scale for AK4396 volume control. ALSA: hda_intel: add position_fix quirk for Asus K53E ALSA: compress_core: fix open flags test in snd_compr_open() ALSA: hda - Fix Oops at codec reset/reconfig ALSA: usb-audio: Fix bogus error messages for delay accounting ALSA: hda - Fix missing Master volume for STAC9200/925x
2012-09-13Merge tag 'fixes-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull arm-soc bug fixes from Olof Johansson: - A set of OMAP fixes, about half of them PM/clock related, the rest scattered over the platform code but all small and targeted to real bugs. - Two small i.MX fixes for SSI device clock setup. * tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: ARM: clk-imx35: Fix SSI clock registration ARM: clk-imx25: Fix SSI clock registration ARM: OMAP4: Fix array size for irq_target_cpu ARM: OMAP4: hwmod data: temporarily comment out data for the sl2if IP block ARM: OMAP: hwmod code: Disable module when hwmod enable fails ARM: OMAP3: hwmod data: fix iva2 reset info ARM: OMAP3xxx: clockdomain: fix software supervised wakeup/sleep ARM: OMAP2+: am33xx: Fix the timer fck clock naming convention ARM: OMAP: Config fix for omap3-touchbook board ARM: OMAP: sram: skip the first 16K on OMAP3 HS ARM: OMAP: sram: fix OMAP4 errata handling ARM: OMAP: timer: obey the !CONFIG_OMAP_32K_TIMER
2012-09-13Merge tag 'upstream-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev Pull additional AHCI PCI IDs from Jeff Garzik. * tag 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev: ahci: Add identifiers for ASM106x devices ahci: Add alternate identifier for the 88SE9172 ahci: Add JMicron 362 device IDs
2012-09-12Merge tag 'imx-fixes' of git://git.pengutronix.de/git/imx/linux-2.6 into fixesOlof Johansson
ARM: i.MX: Fix SSI clock associations for i.MX25/i.MX35 * tag 'imx-fixes' of git://git.pengutronix.de/git/imx/linux-2.6: ARM: clk-imx35: Fix SSI clock registration ARM: clk-imx25: Fix SSI clock registration + Linux 3.6-rc5
2012-09-13ahci: Add identifiers for ASM106x devicesAlan Cox
They don't always appear as AHCI class devices but instead as IDE class. Based on an initial patch by Hiroaki Nito Resolves-bug: https://bugzilla.kernel.org/show_bug.cgi?id=42804 Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2012-09-13ahci: Add alternate identifier for the 88SE9172Alan Cox
This can also appear as 0x9192. Reported in bugzilla and confirmed with the board documentation for these boards. Resolves-bug: https://bugzilla.kernel.org/show_bug.cgi?id=42970 Signed-off-by: Alan Cox <alan@linux.intel.com> Cc: The Stables <stable@vger.kernel.org> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2012-09-13ahci: Add JMicron 362 device IDsBen Hutchings
The JMicron JMB362 controller supports AHCI only, but some revisions use the IDE class code. These need to be matched by device ID. These additions have apparently been included by QNAP in their NAS devices using these controllers. References: http://bugs.debian.org/634180 Signed-off-by: Ben Hutchings <ben@decadent.org.uk> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2012-09-13digsig: add hash size comparision on signature verificationDmitry Kasatkin
When pkcs_1_v1_5_decode_emsa() returns without error and hash sizes do not match, hash comparision is not done and digsig_verify_rsa() returns no error. This is a bug and this patch fixes it. The bug was introduced in v3.3 by commit b35e286a640f ("lib/digsig: pkcs_1_v1_5_decode_emsa cleanup"). Cc: stable@vger.kernel.org Signed-off-by: Dmitry Kasatkin <dmitry.kasatkin@intel.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-09-13Merge branch 'fixes' of git://git.linaro.org/people/rmk/linux-armLinus Torvalds
Pull ARM fixes from Russell King: "It's been a while... so there's a little more here than normal. Mostly updates from Will for the breakpoint stuff, and plugging a few holes in the user access functions which crept in when domain support was disabled for ARMv7 CPUs." * 'fixes' of git://git.linaro.org/people/rmk/linux-arm: ARM: 7529/1: delay: set loops_per_jiffy when moving to timer-based loop ARM: 7528/1: uaccess: annotate [__]{get,put}_user functions with might_fault() ARM: 7527/1: uaccess: explicitly check __user pointer when !CPU_USE_DOMAINS ARM: 7526/1: traps: send SIGILL if get_user fails on undef handling path ARM: 7521/1: Fix semihosting Kconfig text ARM: 7513/1: Make sure dtc is built before running it ARM: 7512/1: Fix XIP build due to PHYS_OFFSET definition moving ARM: 7499/1: mm: Fix vmalloc overlap check for !HIGHMEM ARM: 7503/1: mm: only flush both pmd entries for classic MMU ARM: 7502/1: contextidr: avoid using bfi instruction during notifier ARM: 7501/1: decompressor: reset ttbcr for VMSA ARMv7 cores ARM: 7497/1: hw_breakpoint: allow single-byte watchpoints on all addresses ARM: 7496/1: hw_breakpoint: don't rely on dfsr to show watchpoint access type ARM: Fix ioremap() of address zero
2012-09-13Merge tag 'nfs-for-3.6-4' of git://git.linux-nfs.org/projects/trondmy/linux-nfsLinus Torvalds
Pull NFS client bugfixes from Trond Myklebust: - Final (hopefully) fix for the range checking code in NFSv4 getacl. This should fix the Oopses being seen when the acl size is close to PAGE_SIZE. - Fix a regression with the legacy binary mount code - Fix a regression in the readdir cookieverf initialisation - Fix an RPC over UDP regression - Ensure that we report all errors in the NFSv4 open code - Ensure that fsync() reports all relevant synchronisation errors. * tag 'nfs-for-3.6-4' of git://git.linux-nfs.org/projects/trondmy/linux-nfs: NFS: fsync() must exit with an error if page writeback failed SUNRPC: Fix a UDP transport regression NFS: return error from decode_getfh in decode open NFSv4: Fix buffer overflow checking in __nfs4_get_acl_uncached NFSv4: Fix range checking in __nfs4_get_acl_uncached and __nfs4_proc_set_acl NFS: Fix a problem with the legacy binary mount code NFS: Fix the initialisation of the readdir 'cookieverf' array
2012-09-12ALSA: ice1724: Use linear scale for AK4396 volume control.Matteo Frigo
The AK4396 DAC has a linear-scale attentuator, but sound/pci/ice1712/prodigy_hifi.c used a log scale instead, which is not quite right. This patch restores the correct scale, borrowing from the ak4396 code in sound/pci/oxygen/oxygen.c. Signed-off-by: Matteo Frigo <athena@fftw.org> Cc: <stable@vger.kernel.org> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2012-09-12Merge branch 'for-3.6-fixes' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq Pull workqueue fixes from Tejun Heo: "It's later than I'd like but well the timing just didn't work out this time. There are three bug fixes. One from before 3.6-rc1 and two from the new CPU hotplug code. Kudos to Lai for discovering all of them and providing fixes. * Atomicity bug when clearing a flag and setting another. The two operation should have been atomic but wasn't. This bug has existed for a long time but is unlikely to have actually happened. Fix is safe. Marked for -stable. * If CPU hotplug cycles happen back-to-back before workers finish the previous cycle, the states could get out of sync and it could get stuck. Fixed by waiting for workers to complete before finishing hotplug cycle. * While CPU hotplug is in progress, idle workers could be depleted which can then lead to deadlock. I think both happening together is highly unlikely but still better to fix it and the fix isn't too scary. There's another workqueue related regression which reported a few days ago: https://bugzilla.kernel.org/show_bug.cgi?id=47301 It's a bit of head scratcher but there is a semi-reliable reproduce case, so I'm hoping to resolve it soonish." * 'for-3.6-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq: workqueue: fix possible idle worker depletion across CPU hotplug workqueue: restore POOL_MANAGING_WORKERS workqueue: fix possible deadlock in idle worker rebinding workqueue: move WORKER_REBIND clearing in rebind_workers() to the end of the function workqueue: UNBOUND -> REBIND morphing in rebind_workers() should be atomic
2012-09-12Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6Linus Torvalds
Pull crypto fixes from Herbert Xu: "This fixes the authenc self-test crash as well as a missing export of a symbol used by a module." * git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: crypto: authenc - Fix crash with zero-length assoc data crypto/caam: Export gen_split_key symbol for other modules
2012-09-12Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/lliubbo/blackfin Pull blackfin updates from Bob Liu: "One kbuild and a smp build fix." * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/lliubbo/blackfin: kbuild: add symbol prefix arg to kallsyms blackfin: smp: adapt to generic smp helpers
2012-09-11NFS: fsync() must exit with an error if page writeback failedTrond Myklebust
We need to ensure that if the call to filemap_write_and_wait_range() fails, then we report that error back to the application. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2012-09-11ALSA: hda_intel: add position_fix quirk for Asus K53ECatalin Iacob
Commit c20c5a841cbe47f5b7812b57bd25397497e5fbc0 changed some chipsets to default to POS_FIX_COMBO so they now use POS_FIX_LPIB instead of POS_FIX_POSBUF. Since then I've been getting artifacts on playback, including repeated sounds on my Asus laptop. My hardware is Cougar Point which the commit log of c20c5a841cbe47f5b7812b57bd25397497e5fbc0 mentions as tested so POS_FIX_COMBO probably works in general but apparently it doesn't on Asus K53E therefore the need for the quirk. Signed-off-by: Catalin Iacob <iacobcatalin@gmail.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2012-09-11ALSA: compress_core: fix open flags test in snd_compr_open()Dan Carpenter
O_RDONLY is zero so the original test (f->f_flags & O_RDONLY) is always false and it will never do compress capture. The test for O_WRONLY is also slightly off. The original test would consider "->flags = (O_WRONLY | O_RDWR)" as write only instead of rejecting it as invalid. I've also removed the pr_err() because that could flood dmesg. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2012-09-11ARM: clk-imx35: Fix SSI clock registrationFabio Estevam
SSI block has two types of clock: ipg: bus clock, the clock needed for accessing registers. per: peripheral clock, the clock needed for generating the bit rate. Currently SSI driver only supports slave mode and only need to handle the ipg clock, because the peripheral clock comes from the master codec. Only register the ipg clock and do not register the peripheral clock for ssi. Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com> Tested-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Cc: stable@vger.kernel.org
2012-09-11ARM: clk-imx25: Fix SSI clock registrationFabio Estevam
SSI block has two types of clock: ipg: bus clock, the clock needed for accessing registers. per: peripheral clock, the clock needed for generating the bit rate. Currently SSI driver only supports slave mode and only need to handle the ipg clock, because the peripheral clock comes from the master codec. Only register the ipg clock and do not register the peripheral clock for ssi. Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Cc: stable@vger.kernel.org
2012-09-11crypto: authenc - Fix crash with zero-length assoc dataHerbert Xu
The authenc code doesn't deal with zero-length associated data correctly and ends up constructing a zero-length sg entry which causes a crash when it's fed into the crypto system. This patch fixes this by avoiding the code-path that triggers the SG construction if we have no associated data. This isn't the most optimal fix as it means that we'll end up using the fallback code-path even when we could still execute the digest function. However, this isn't a big deal as nobody but the test path would supply zero-length associated data. Reported-by: Romain Francoise <romain@orebokech.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Tested-by: Romain Francoise <romain@orebokech.com>
2012-09-11kbuild: add symbol prefix arg to kallsymsJames Hogan
Commit 1f2bfbd00e466ff3489b2ca5cc75b1cccd14c123 ("kbuild: link of vmlinux moved to a script") introduced in v3.5-rc1 broke kallsyms on architectures which have symbol prefixes. The --symbol-prefix argument used to be added to the KALLSYMS command line from the architecture Makefile, however this isn't picked up by the new scripts/link-vmlinux.sh. This resulted in symbols like kallsyms_addresses being added which weren't correctly overriding the weak symbols such as _kallsyms_addresses. These could then trigger BUG_ONs in kallsyms code. This is fixed by removing the KALLSYMS addition from the architecture Makefile, and using CONFIG_SYMBOL_PREFIX in the link-vmlinux.sh script to determine whether to add the --symbol-prefix argument. Signed-off-by: James Hogan <james.hogan@imgtec.com> Signed-off-by: Bob Liu <lliubbo@gmail.com>
2012-09-11Merge tag 'scsi-fixes' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi Pull SCSI fixes from James Bottomley: "I had actually prepared this fix set before I left for KS + Plumbers, so it's been incubating much longer than it should have. I'll be picking up my three week backlog this week, so more fixes will then be forthcoming This set consist of three minor and one fairly major (the device not ready causing offlining problem which is a serious regression introduced by the media change update) fixes. Signed-off-by: James Bottomley <JBottomley@Parallels.com>" * tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: [SCSI] Fix 'Device not ready' issue on mpt2sas [SCSI] scsi_lib: fix scsi_io_completion's SG_IO error propagation [SCSI] megaraid_sas: Move poll_aen_lock initializer [SCSI] mpt2sas: Fix for Driver oops, when loading driver with max_queue_depth command line option to a very small value
2012-09-11Merge tag 'kvm-3.6-2' of git://git.kernel.org/pub/scm/virt/kvm/kvmLinus Torvalds
Pull KVM updates from Avi Kivity: "A trio of KVM fixes: incorrect lookup of guest cpuid, an uninitialized variable fix, and error path cleanup fix." * tag 'kvm-3.6-2' of git://git.kernel.org/pub/scm/virt/kvm/kvm: KVM: fix error paths for failed gfn_to_page() calls KVM: x86: Check INVPCID feature bit in EBX of leaf 7 KVM: PIC: fix use of uninitialised variable.
2012-09-11Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse Pull FUSE fixes from Miklos Szeredi: "This contains bugfixes for FUSE and CUSE and a compile warning fix." * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse: fuse: fix retrieve length fuse: mark variables uninitialized cuse: kill connection on initialization error cuse: fix fuse_conn_kill()
2012-09-11Merge branch 'for-linus' of git://git.samba.org/sfrench/cifs-2.6Linus Torvalds
Pull CIFS fixes from Steve French. * 'for-linus' of git://git.samba.org/sfrench/cifs-2.6: CIFS: Fix endianness conversion CIFS: Fix error handling in cifs_push_mandatory_locks
2012-09-11Merge branch 'for_linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs Pull UDF and ext3 fixes from Jan Kara: "One UDF data corruption fix and one ext3 fix where we didn't write everything to disk on fsync in one corner case." * 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs: udf: Fix data corruption for files in ICB ext3: Fix fdatasync() for files with only i_size changes
2012-09-11Merge branch 'i2c-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging Pull i2c subsystem fixes from Jean Delvare. * 'i2c-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging: i2c-core: Fix for lockdep validator i2c-designware: Fix build error if CONFIG_I2C_DESIGNWARE_PLATFORM=y && CONFIG_I2C_DESIGNWARE_PCI=y i2c-i801: Add Device IDs for Intel Lynx Point-LP PCH
2012-09-10workqueue: fix possible idle worker depletion across CPU hotplugLai Jiangshan
To simplify both normal and CPU hotplug paths, worker management is prevented while CPU hoplug is in progress. This is achieved by CPU hotplug holding the same exclusion mechanism used by workers to ensure there's only one manager per pool. If someone else seems to be performing the manager role, workers proceed to execute work items. CPU hotplug using the same mechanism can lead to idle worker depletion because all workers could proceed to execute work items while CPU hotplug is in progress and CPU hotplug itself wouldn't actually perform the worker management duty - it doesn't guarantee that there's an idle worker left when it releases management. This idle worker depletion, under extreme circumstances, can break forward-progress guarantee and thus lead to deadlock. This patch fixes the bug by using separate mechanisms for manager exclusion among workers and hotplug exclusion. For manager exclusion, POOL_MANAGING_WORKERS which was restored by the previous patch is used. pool->manager_mutex is now only used for exclusion between the elected manager and CPU hotplug. The elected manager won't proceed without holding pool->manager_mutex. This ensures that the worker which won the manager position can't skip managing while CPU hotplug is in progress. It will block on manager_mutex and perform management after CPU hotplug is complete. Note that hotplug may happen while waiting for manager_mutex. A manager isn't either on idle or busy list and thus the hoplug code can't unbind/rebind it. Make the manager handle its own un/rebinding. tj: Updated comment and description. Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com> Signed-off-by: Tejun Heo <tj@kernel.org>
2012-09-11Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linuxLinus Torvalds
Pull drm fixes from Dave Airlie: "Just noticed I hadn't send these out, nothing majorly urgent, I know AMD guys have some regression fixes coming soon. This contains: 2 nouveau fixes so it loads on the retina MBP systems properly, 2 vmwgfx fixes to load the driver earlier, and allow distros config it 1 error->debug fix in ast and Keith was playing with 32-on-64 and decided we may as well stick the compat ioctl in all the drivers. It fixes udl for him." * 'drm-fixes' of git://people.freedesktop.org/~airlied/linux: drm/vmwgfx: add MODULE_DEVICE_TABLE so vmwgfx loads at boot drm/vmwgfx: allow a kconfig option to choose if fbcon is enabled drm: use drm_compat_ioctl for 32-bit apps drm/ast: drop debug level on error printk drm/nv50-/gpio: initialise to vbios defaults during init drm/nvd0/disp: hopefully fix selection of 6/8bpc mode on DP outputs
2012-09-10workqueue: restore POOL_MANAGING_WORKERSLai Jiangshan
This patch restores POOL_MANAGING_WORKERS which was replaced by pool->manager_mutex by 6037315269 "workqueue: use mutex for global_cwq manager exclusion". There's a subtle idle worker depletion bug across CPU hotplug events and we need to distinguish an actual manager and CPU hotplug preventing management. POOL_MANAGING_WORKERS will be used for the former and manager_mutex the later. This patch just lays POOL_MANAGING_WORKERS on top of the existing manager_mutex and doesn't introduce any synchronization changes. The next patch will update it. Note that this patch fixes a non-critical anomaly where too_many_workers() may return %true spuriously while CPU hotplug is in progress. While the issue could schedule idle timer spuriously, it didn't trigger any actual misbehavior. tj: Rewrote patch description. Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com> Signed-off-by: Tejun Heo <tj@kernel.org>
2012-09-10KVM: fix error paths for failed gfn_to_page() callsXiao Guangrong
This bug was triggered: [ 4220.198458] BUG: unable to handle kernel paging request at fffffffffffffffe [ 4220.203907] IP: [<ffffffff81104d85>] put_page+0xf/0x34 ...... [ 4220.237326] Call Trace: [ 4220.237361] [<ffffffffa03830d0>] kvm_arch_destroy_vm+0xf9/0x101 [kvm] [ 4220.237382] [<ffffffffa036fe53>] kvm_put_kvm+0xcc/0x127 [kvm] [ 4220.237401] [<ffffffffa03702bc>] kvm_vcpu_release+0x18/0x1c [kvm] [ 4220.237407] [<ffffffff81145425>] __fput+0x111/0x1ed [ 4220.237411] [<ffffffff8114550f>] ____fput+0xe/0x10 [ 4220.237418] [<ffffffff81063511>] task_work_run+0x5d/0x88 [ 4220.237424] [<ffffffff8104c3f7>] do_exit+0x2bf/0x7ca The test case: printf(fmt, ##args); \ exit(-1);} while (0) static int create_vm(void) { int sys_fd, vm_fd; sys_fd = open("/dev/kvm", O_RDWR); if (sys_fd < 0) die("open /dev/kvm fail.\n"); vm_fd = ioctl(sys_fd, KVM_CREATE_VM, 0); if (vm_fd < 0) die("KVM_CREATE_VM fail.\n"); return vm_fd; } static int create_vcpu(int vm_fd) { int vcpu_fd; vcpu_fd = ioctl(vm_fd, KVM_CREATE_VCPU, 0); if (vcpu_fd < 0) die("KVM_CREATE_VCPU ioctl.\n"); printf("Create vcpu.\n"); return vcpu_fd; } static void *vcpu_thread(void *arg) { int vm_fd = (int)(long)arg; create_vcpu(vm_fd); return NULL; } int main(int argc, char *argv[]) { pthread_t thread; int vm_fd; (void)argc; (void)argv; vm_fd = create_vm(); pthread_create(&thread, NULL, vcpu_thread, (void *)(long)vm_fd); printf("Exit.\n"); return 0; } It caused by release kvm->arch.ept_identity_map_addr which is the error page. The parent thread can send KILL signal to the vcpu thread when it was exiting which stops faulting pages and potentially allocating memory. So gfn_to_pfn/gfn_to_page may fail at this time Fixed by checking the page before it is used Signed-off-by: Xiao Guangrong <xiaoguangrong@linux.vnet.ibm.com> Signed-off-by: Avi Kivity <avi@redhat.com>
2012-09-10ALSA: hda - Fix Oops at codec reset/reconfigTakashi Iwai
snd_hda_codec_reset() calls restore_pincfgs() where the codec is powered up again, which eventually tries to resume and initialize via the callbacks of the codec. However, it's the place just after codec free callback, thus no codec callbacks should be called after that. On a codec like CS4206, it results in Oops due to the access in init callback. This patch fixes the issue by clearing the codec callbacks properly after freeing codec. Reported-by: Daniel J Blueman <daniel@quora.org> Cc: <stable@vger.kernel.org> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2012-09-10i2c-core: Fix for lockdep validatorJean Delvare
If kernel is compiled with CONFIG_PROVE_LOCKING the validator raises an error when a multiplexer is removed via sysfs and sub-clients are connected to it. This is a false positive. Documentation/lockdep-design.txt recommends to handle this via calls to mutex_lock_nested(). Based on an earlier fix from Michael Lawnick. Note that the extra code resolves to nothing unless CONFIG_DEBUG_LOCK_ALLOC=y. Signed-off-by: Jean Delvare <khali@linux-fr.org> Cc: Michael Lawnick <ml.lawnick@gmx.de>
2012-09-10i2c-designware: Fix build error if CONFIG_I2C_DESIGNWARE_PLATFORM=y && ↵Axel Lin
CONFIG_I2C_DESIGNWARE_PCI=y This patch adds config I2C_DESIGNWARE_CORE in Kconfig, and let I2C_DESIGNWARE_PLATFORM and I2C_DESIGNWARE_PCI select I2C_DESIGNWARE_CORE. Because both I2C_DESIGNWARE_PLATFORM and I2C_DESIGNWARE_PCI can be built as built-in or module, we also need to export the functions in i2c-designware-core. This fixes below build error when CONFIG_I2C_DESIGNWARE_PLATFORM=y && CONFIG_I2C_DESIGNWARE_PCI=y: LD drivers/i2c/busses/built-in.o drivers/i2c/busses/i2c-designware-pci.o: In function `i2c_dw_clear_int': i2c-designware-core.c:(.text+0xa10): multiple definition of `i2c_dw_clear_int' drivers/i2c/busses/i2c-designware-platform.o:i2c-designware-platdrv.c:(.text+0x928): first defined here drivers/i2c/busses/i2c-designware-pci.o: In function `i2c_dw_init': i2c-designware-core.c:(.text+0x178): multiple definition of `i2c_dw_init' drivers/i2c/busses/i2c-designware-platform.o:i2c-designware-platdrv.c:(.text+0x90): first defined here drivers/i2c/busses/i2c-designware-pci.o: In function `dw_readl': i2c-designware-core.c:(.text+0xe8): multiple definition of `dw_readl' drivers/i2c/busses/i2c-designware-platform.o:i2c-designware-platdrv.c:(.text+0x0): first defined here drivers/i2c/busses/i2c-designware-pci.o: In function `i2c_dw_isr': i2c-designware-core.c:(.text+0x724): multiple definition of `i2c_dw_isr' drivers/i2c/busses/i2c-designware-platform.o:i2c-designware-platdrv.c:(.text+0x63c): first defined here drivers/i2c/busses/i2c-designware-pci.o: In function `i2c_dw_xfer': i2c-designware-core.c:(.text+0x4b0): multiple definition of `i2c_dw_xfer' drivers/i2c/busses/i2c-designware-platform.o:i2c-designware-platdrv.c:(.text+0x3c8): first defined here drivers/i2c/busses/i2c-designware-pci.o: In function `i2c_dw_is_enabled': i2c-designware-core.c:(.text+0x9d4): multiple definition of `i2c_dw_is_enabled' drivers/i2c/busses/i2c-designware-platform.o:i2c-designware-platdrv.c:(.text+0x8ec): first defined here drivers/i2c/busses/i2c-designware-pci.o: In function `dw_writel': i2c-designware-core.c:(.text+0x124): multiple definition of `dw_writel' drivers/i2c/busses/i2c-designware-platform.o:i2c-designware-platdrv.c:(.text+0x3c): first defined here drivers/i2c/busses/i2c-designware-pci.o: In function `i2c_dw_xfer_msg': i2c-designware-core.c:(.text+0x2e8): multiple definition of `i2c_dw_xfer_msg' drivers/i2c/busses/i2c-designware-platform.o:i2c-designware-platdrv.c:(.text+0x200): first defined here drivers/i2c/busses/i2c-designware-pci.o: In function `i2c_dw_enable': i2c-designware-core.c:(.text+0x9c8): multiple definition of `i2c_dw_enable' drivers/i2c/busses/i2c-designware-platform.o:i2c-designware-platdrv.c:(.text+0x8e0): first defined here drivers/i2c/busses/i2c-designware-pci.o: In function `i2c_dw_read_comp_param': i2c-designware-core.c:(.text+0xa24): multiple definition of `i2c_dw_read_comp_param' drivers/i2c/busses/i2c-designware-platform.o:i2c-designware-platdrv.c:(.text+0x93c): first defined here drivers/i2c/busses/i2c-designware-pci.o: In function `i2c_dw_disable': i2c-designware-core.c:(.text+0x9dc): multiple definition of `i2c_dw_disable' drivers/i2c/busses/i2c-designware-platform.o:i2c-designware-platdrv.c:(.text+0x8f4): first defined here drivers/i2c/busses/i2c-designware-pci.o: In function `i2c_dw_func': i2c-designware-core.c:(.text+0x710): multiple definition of `i2c_dw_func' drivers/i2c/busses/i2c-designware-platform.o:i2c-designware-platdrv.c:(.text+0x628): first defined here drivers/i2c/busses/i2c-designware-pci.o: In function `i2c_dw_disable_int': i2c-designware-core.c:(.text+0xa18): multiple definition of `i2c_dw_disable_int' drivers/i2c/busses/i2c-designware-platform.o:i2c-designware-platdrv.c:(.text+0x930): first defined here make[3]: *** [drivers/i2c/busses/built-in.o] Error 1 make[2]: *** [drivers/i2c/busses] Error 2 make[1]: *** [drivers/i2c] Error 2 make: *** [drivers] Error 2 Signed-off-by: Axel Lin <axel.lin@gmail.com> Signed-off-by: Jean Delvare <khali@linux-fr.org> Tested-by: Jiri Slaby <jslaby@suse.cz> Cc: stable@vger.kernel.org [3.2+]
2012-09-10i2c-i801: Add Device IDs for Intel Lynx Point-LP PCHJames Ralston
Add the SMBus Device IDs for the Intel Lynx Point-LP PCH. Signed-off-by: James Ralston <james.d.ralston@intel.com> Signed-off-by: Jean Delvare <khali@linux-fr.org>
2012-09-09ARM: 7529/1: delay: set loops_per_jiffy when moving to timer-based loopWill Deacon
The delay functions may be called by some platforms between switching to the timer-based delay loop but before calibration. In this case, the initial loops_per_jiffy may not be suitable for the timer (although a compromise may be achievable) and delay times may be considered too inaccurate. This patch updates loops_per_jiffy when switching to the timer-based delay loop so that delays are consistent prior to calibration. Signed-off-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2012-09-09ARM: 7528/1: uaccess: annotate [__]{get,put}_user functions with might_fault()Will Deacon
The user access functions may generate a fault, resulting in invocation of a handler that may sleep. This patch annotates the accessors with might_fault() so that we print a warning if they are invoked from atomic context and help lockdep keep track of mmap_sem. Signed-off-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2012-09-09ARM: 7527/1: uaccess: explicitly check __user pointer when !CPU_USE_DOMAINSRussell King
The {get,put}_user macros don't perform range checking on the provided __user address when !CPU_HAS_DOMAINS. This patch reworks the out-of-line assembly accessors to check the user address against a specified limit, returning -EFAULT if is is out of range. [will: changed get_user register allocation to match put_user] [rmk: fixed building on older ARM architectures] Reported-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Will Deacon <will.deacon@arm.com> Cc: stable@vger.kernel.org Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2012-09-09KVM: x86: Check INVPCID feature bit in EBX of leaf 7Ren, Yongjie
Checks and operations on the INVPCID feature bit should use EBX of CPUID leaf 7 instead of ECX. Signed-off-by: Junjie Mao <junjie.mao@intel.com> Signed-off-by: Yongjie Ren <yongjien.ren@intel.com> Signed-off-by: Avi Kivity <avi@redhat.com>
2012-09-08Linux 3.6-rc5v3.6-rc5Linus Torvalds
2012-09-08Merge branch 'fixes-for-3.6' of ↵Linus Torvalds
git://git.linaro.org/people/mszyprowski/linux-dma-mapping Pull DMA-mapping fixes from Marek Szyprowski: "Another set of fixes for ARM dma-mapping subsystem. Commit e9da6e9905e6 replaced custom consistent buffer remapping code with generic vmalloc areas. It however introduced some regressions caused by limited support for allocations in atomic context. This series contains fixes for those regressions. For some subplatforms the default, pre-allocated pool for atomic allocations turned out to be too small, so a function for setting its size has been added. Another set of patches adds support for atomic allocations to IOMMU-aware DMA-mapping implementation. The last part of this pull request contains two fixes for Contiguous Memory Allocator, which relax too strict requirements." * 'fixes-for-3.6' of git://git.linaro.org/people/mszyprowski/linux-dma-mapping: ARM: dma-mapping: IOMMU allocates pages from atomic_pool with GFP_ATOMIC ARM: dma-mapping: Introduce __atomic_get_pages() for __iommu_get_pages() ARM: dma-mapping: Refactor out to introduce __in_atomic_pool ARM: dma-mapping: atomic_pool with struct page **pages ARM: Kirkwood: increase atomic coherent pool size ARM: DMA-Mapping: print warning when atomic coherent allocation fails ARM: DMA-Mapping: add function for setting coherent pool size from platform code ARM: relax conditions required for enabling Contiguous Memory Allocator mm: cma: fix alignment requirements for contiguous regions
2012-09-08Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input Pull input subsystem updates from Dmitry Torokhov. * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: Input: wacom - add support for EMR on Cintiq 24HD touch Input: i8042 - add Gigabyte T1005 series netbooks to noloop table Input: imx_keypad - reset the hardware before enabling Input: edt-ft5x06 - fix build error when compiling wthout CONFIG_DEBUG_FS
2012-09-07Merge tag 'omap-fixes-for-v3.6-rc4' of ↵Olof Johansson
git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into fixes Fixes for timer, sram, memory corruption, and one board file that affect booting on various omaps. Then some PM related fixes for reset, sleep and wakeup. * tag 'omap-fixes-for-v3.6-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap: ARM: OMAP4: Fix array size for irq_target_cpu ARM: OMAP4: hwmod data: temporarily comment out data for the sl2if IP block ARM: OMAP: hwmod code: Disable module when hwmod enable fails ARM: OMAP3: hwmod data: fix iva2 reset info ARM: OMAP3xxx: clockdomain: fix software supervised wakeup/sleep ARM: OMAP2+: am33xx: Fix the timer fck clock naming convention ARM: OMAP: Config fix for omap3-touchbook board ARM: OMAP: sram: skip the first 16K on OMAP3 HS ARM: OMAP: sram: fix OMAP4 errata handling ARM: OMAP: timer: obey the !CONFIG_OMAP_32K_TIMER
2012-09-07ARM: 7526/1: traps: send SIGILL if get_user fails on undef handling pathWill Deacon
get_user may fail to load from the provided __user address due to an unhandled fault generated by the access. In the case of the undefined instruction trap, this results in failure to load the faulting instruction, in which case we should send SIGILL to the task rather than continue with potentially uninitialised data. Signed-off-by: Will Deacon <will.deacon@arm.com> Cc: stable@vger.kernel.org Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2012-09-07ARM: 7521/1: Fix semihosting Kconfig textStephen Boyd
It seems we were missing some text in the title for the semihosting DEBUG_LL option. Add in the "/O" and fix up some minor typos in the help text. Signed-off-by: Stephen Boyd <sboyd@codeaurora.org> Acked-by: Nicolas Pitre <nicolas.pitre@linaro.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2012-09-07ARM: 7513/1: Make sure dtc is built before running itDavid Brown
'make dtbs' in a clean tree will try running the dtc before actually building it. Make these rules depend upon the scripts to build it. Cc: <stable@vger.kernel.org> Signed-off-by: David Brown <davidb@codeaurora.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2012-09-07ARM: 7512/1: Fix XIP build due to PHYS_OFFSET definition movingStephen Boyd
During the p2v changes, the PHYS_OFFSET #define moved into a !__ASSEMBLY__ section. This causes a XIP build to fail with arch/arm/kernel/head.o: In function 'stext': arch/arm/kernel/head.S:146: undefined reference to 'PHYS_OFFSET' Momentarily leave the #ifndef __ASSEMBLY__ section so we can define PHYS_OFFSET for all compilation units. Signed-off-by: Stephen Boyd <sboyd@codeaurora.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2012-09-07Merge branch 'upstream-fixes' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid Pull HID updates from Jiri Kosina: "It contains a fix for Eaton Ellipse MAX UPS from Alan Stern, performance improvement (not processing debug data if noone is interested), by Henrik Rydberg, and allowing tpkbd-driven devices to work even with generic driver in a crippled mode, by Andres Freund." * 'upstream-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid: HID: tpkbd: work even if the new Lenovo Keyboard driver is not configured HID: Only dump input if someone is listening HID: add NOGET quirk for Eaton Ellipse MAX UPS
2012-09-07SUNRPC: Fix a UDP transport regressionTrond Myklebust
Commit 43cedbf0e8dfb9c5610eb7985d5f21263e313802 (SUNRPC: Ensure that we grab the XPRT_LOCK before calling xprt_alloc_slot) is causing hangs in the case of NFS over UDP mounts. Since neither the UDP or the RDMA transport mechanism use dynamic slot allocation, we can skip grabbing the socket lock for those transports. Add a new rpc_xprt_op to allow switching between the TCP and UDP/RDMA case. Note that the NFSv4.1 back channel assigns the slot directly through rpc_run_bc_task, so we can ignore that case. Reported-by: Dick Streefland <dick.streefland@altium.nl> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com> Cc: stable@vger.kernel.org [>= 3.1]