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2013-03-15Merge tag 'mfd-fixes-3.9-1' of ↵Linus Torvalds16-23/+63
git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-fixes Pull MFD fixes from Samuel Ortiz: "This is the first batch of MFD fixes for 3.9. With this one we have: - An ab8500 build failure fix. - An ab8500 device tree parsing fix. - A fix for twl4030_madc remove routine to work properly (when built-in). - A fix for properly registering palmas interrupt handler. - A fix for omap-usb init routine to actually write into the hostconfig register. - A couple of warning fixes for ab8500-gpadc and tps65912" * tag 'mfd-fixes-3.9-1' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-fixes: mfd: twl4030-madc: Remove __exit_p annotation mfd: ab8500: Kill "reg" property from binding mfd: ab8500-gpadc: Complain if we fail to enable vtvout LDO mfd: wm831x: Don't forward declare enum wm831x_auxadc mfd: twl4030-audio: Fix argument type for twl4030_audio_disable_resource() mfd: tps65912: Declare and use tps65912_irq_exit() mfd: palmas: Provide irq flags through DT/platform data mfd: Make AB8500_CORE select POWER_SUPPLY to fix build error mfd: omap-usb-host: Actually update hostconfig
2013-03-15Merge tag 'hwmon-for-linus' of ↵Linus Torvalds4-11/+42
git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging Pull hwmon fixes from Guenter Roeck: "Bug fixes for pmbus, ltc2978, and lineage-pem drivers Added specific maintainer for some hwmon drivers" * tag 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging: hwmon: (pmbus/ltc2978) Fix temperature reporting hwmon: (pmbus) Fix krealloc() misuse in pmbus_add_attribute() hwmon: (lineage-pem) Add missing terminating entry for pem_[input|fan]_attributes MAINTAINERS: Add maintainer for MAX6697, INA209, and INA2XX drivers
2013-03-15perf,x86: fix kernel crash with PEBS/BTS after suspend/resumeStephane Eranian3-0/+12
This patch fixes a kernel crash when using precise sampling (PEBS) after a suspend/resume. Turns out the CPU notifier code is not invoked on CPU0 (BP). Therefore, the DS_AREA (used by PEBS) is not restored properly by the kernel and keeps it power-on/resume value of 0 causing any PEBS measurement to crash when running on CPU0. The workaround is to add a hook in the actual resume code to restore the DS Area MSR value. It is invoked for all CPUS. So for all but CPU0, the DS_AREA will be restored twice but this is harmless. Reported-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Stephane Eranian <eranian@google.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-03-15mfd: twl4030-madc: Remove __exit_p annotationArnd Bergmann1-1/+1
4740f73fe5 "mfd: remove use of __devexit" removed the __devexit annotation on the twl4030_madc_remove function, but left an __exit_p() present on the pointer to this function. Using __exit_p was as wrong with the devexit in place as it is now, but now we get a gcc warning about an unused function. In order for the twl4030_madc_remove to work correctly in built-in code, we have to remove the __exit_p. Cc: Bill Pemberton <wfp5p@virginia.edu> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-03-14mm/fremap.c: fix possible oops on error pathMichel Lespinasse1-3/+2
The vm_flags introduced in 6d7825b10dbe ("mm/fremap.c: fix oops on error path") is supposed to avoid a compiler warning about unitialized vm_flags without changing the generated code. However I am concerned that this is going to be very brittle, and fail with some compiler versions. The failure could be either of: - compiler could actually load vma->vm_flags before checking for the !vma condition, thus reintroducing the oops - compiler could optimize out the !vma check, since the pointer just got dereferenced shortly before (so the compiler knows it can't be NULL!) I propose reversing this part of the change and initializing vm_flags to 0 just to avoid the bogus uninitialized use warning. Signed-off-by: Michel Lespinasse <walken@google.com> Cc: Tommi Rantala <tt.rantala@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-03-14Merge branch 'rcu/urgent' of ↵Linus Torvalds1-1/+3
git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu Pull fix for hlist_entry_safe() regression from Paul McKenney: "This contains a single commit that fixes a regression in hlist_entry_safe(). This macro references its argument twice, which can cause NULL-pointer errors. This commit applies a gcc statement expression, creating a temporary variable to avoid the double reference. This has been posted to LKML at https://lkml.org/lkml/2013/3/9/75. Kudos to CAI Qian, whose testing uncovered this, to Eric Dumazet, who spotted root cause, and to Li Zefan, who tested this commit." * 'rcu/urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu: list: Fix double fetch of pointer in hlist_entry_safe()
2013-03-14list: Fix double fetch of pointer in hlist_entry_safe()Paul E. McKenney1-1/+3
The current version of hlist_entry_safe() fetches the pointer twice, once to test for NULL and the other to compute the offset back to the enclosing structure. This is OK for normal lock-based use because in that case, the pointer cannot change. However, when the pointer is protected by RCU (as in "rcu_dereference(p)"), then the pointer can change at any time. This use case can result in the following sequence of events: 1. CPU 0 invokes hlist_entry_safe(), fetches the RCU-protected pointer as sees that it is non-NULL. 2. CPU 1 invokes hlist_del_rcu(), deleting the entry that CPU 0 just fetched a pointer to. Because this is the last entry in the list, the pointer fetched by CPU 0 is now NULL. 3. CPU 0 refetches the pointer, obtains NULL, and then gets a NULL-pointer crash. This commit therefore applies gcc's "({ })" statement expression to create a temporary variable so that the specified pointer is fetched only once, avoiding the above sequence of events. Please note that it is the caller's responsibility to use rcu_dereference() as needed. This allows RCU-protected uses to work correctly without imposing any additional overhead on the non-RCU case. Many thanks to Eric Dumazet for spotting root cause! Reported-by: CAI Qian <caiqian@redhat.com> Reported-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Tested-by: Li Zefan <lizefan@huawei.com>
2013-03-14Merge branch 'for_linus' of ↵Linus Torvalds5-7/+9
git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs Pull ext2, ext3, reiserfs, quota fixes from Jan Kara: "A fix for regression in ext2, and a format string issue in ext3. The rest isn't too serious." * 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs: ext2: Fix BUG_ON in evict() on inode deletion reiserfs: Use kstrdup instead of kmalloc/strcpy ext3: Fix format string issues quota: add missing use of dq_data_lock in __dquot_initialize
2013-03-14hwmon: (pmbus/ltc2978) Fix temperature reportingGuenter Roeck1-6/+8
On LTC2978, only READ_TEMPERATURE is supported. It reports the internal junction temperature. This register is unpaged. On LTC3880, READ_TEMPERATURE and READ_TEMPERATURE2 are supported. READ_TEMPERATURE is paged and reports external temperatures. READ_TEMPERATURE2 is unpaged and reports the internal junction temperature. Signed-off-by: Guenter Roeck <linux@roeck-us.net> Cc: stable@vger.kernel.org # 3.2+ Acked-by: Jean Delvare <khali@linux-fr.org>
2013-03-14hwmon: (pmbus) Fix krealloc() misuse in pmbus_add_attribute()David Woodhouse1-5/+7
If krealloc() returns NULL, it *doesn't* free the original. So any code of the form 'foo = krealloc(foo, …);' is almost certainly a bug. Signed-off-by: David Woodhouse <David.Woodhouse@intel.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2013-03-14hwmon: (lineage-pem) Add missing terminating entry for ↵Axel Lin1-0/+2
pem_[input|fan]_attributes Signed-off-by: Axel Lin <axel.lin@ingics.com> Cc: stable@vger.kernel.org Acked-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2013-03-13Merge branch 'for-linus' of ↵Linus Torvalds11-0/+12
git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace Pull namespace bugfixes from Eric Biederman: "This tree includes a partial revert for "fs: Limit sys_mount to only request filesystem modules." When I added the new style module aliases to the filesystems I deleted the old ones. A bad move. It turns out that distributions like Arch linux use module aliases when constructing ramdisks. Which meant ultimately that an ext3 filesystem mounted with ext4 would not result in the ext4 module being put into the ramdisk. The other change in this tree adds a handful of filesystem module alias I simply failed to add the first time. Which inconvinienced a few folks using cifs. I don't want to inconvinience folks any longer than I have to so here are these trivial fixes." * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace: fs: Readd the fs module aliases. fs: Limit sys_mount to only request filesystem modules. (Part 3)
2013-03-13Merge branch 'akpm' (fixes from Andrew)Linus Torvalds16-174/+144
Merge misc fixes from Andrew Morton: - A bunch of fixes - Finish off the idr API conversions before someone starts to use the old interfaces again. * emailed patches from Andrew Morton <akpm@linux-foundation.org>: idr: idr_alloc() shouldn't trigger lowmem warning when preloaded UAPI: fix endianness conditionals in M32R's asm/stat.h UAPI: fix endianness conditionals in linux/raid/md_p.h UAPI: fix endianness conditionals in linux/acct.h UAPI: fix endianness conditionals in linux/aio_abi.h decompressors: fix typo "POWERPC" mm/fremap.c: fix oops on error path idr: deprecate idr_pre_get() and idr_get_new[_above]() tidspbridge: convert to idr_alloc() zcache: convert to idr_alloc() mlx4: remove leftover idr_pre_get() call workqueue: convert to idr_alloc() nfsd: convert to idr_alloc() nfsd: remove unused get_new_stid() kernel/signal.c: use __ARCH_HAS_SA_RESTORER instead of SA_RESTORER signal: always clear sa_restorer on execve mm: remove_memory(): fix end_pfn setting include/linux/res_counter.h needs errno.h
2013-03-13idr: idr_alloc() shouldn't trigger lowmem warning when preloadedTejun Heo1-13/+25
GFP_NOIO is often used for idr_alloc() inside preloaded section as the allocation mask doesn't really matter. If the idr tree needs to be expanded, idr_alloc() first tries to allocate using the specified allocation mask and if it fails falls back to the preloaded buffer. This order prevent non-preloading idr_alloc() users from taking advantage of preloading ones by using preload buffer without filling it shifting the burden of allocation to the preload users. Unfortunately, this allowed/expected-to-fail kmem_cache allocation ends up generating spurious slab lowmem warning before succeeding the request from the preload buffer. This patch makes idr_layer_alloc() add __GFP_NOWARN to the first kmem_cache attempt and try kmem_cache again w/o __GFP_NOWARN after allocation from preload_buffer fails so that lowmem warning is generated if not suppressed by the original @gfp_mask. Signed-off-by: Tejun Heo <tj@kernel.org> Reported-by: David Teigland <teigland@redhat.com> Tested-by: David Teigland <teigland@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-03-13UAPI: fix endianness conditionals in M32R's asm/stat.hDavid Howells1-2/+2
In the UAPI header files, __BIG_ENDIAN and __LITTLE_ENDIAN must be compared against __BYTE_ORDER in preprocessor conditionals where these are exposed to userspace (that is they're not inside __KERNEL__ conditionals). However, in the main kernel the norm is to check for "defined(__XXX_ENDIAN)" rather than comparing against __BYTE_ORDER and this has incorrectly leaked into the userspace headers. The definition of struct stat64 in M32R's asm/stat.h is wrong in this way. Note that userspace will likely interpret the field order incorrectly as the big-endian variant on little-endian machines - depending on header inclusion order. [!!!] NOTE [!!!] This patch may adversely change the userspace API. It might be better to fix the ordering of st_blocks and __pad4 in struct stat64. Signed-off-by: David Howells <dhowells@redhat.com> Cc: Hirokazu Takata <takata@linux-m32r.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-03-13UAPI: fix endianness conditionals in linux/raid/md_p.hDavid Howells1-2/+4
In the UAPI header files, __BIG_ENDIAN and __LITTLE_ENDIAN must be compared against __BYTE_ORDER in preprocessor conditionals where these are exposed to userspace (that is they're not inside __KERNEL__ conditionals). However, in the main kernel the norm is to check for "defined(__XXX_ENDIAN)" rather than comparing against __BYTE_ORDER and this has incorrectly leaked into the userspace headers. The definition of struct mdp_superblock_s in linux/raid/md_p.h is wrong in this way. Note that userspace will likely interpret the ordering of the fields incorrectly as the big-endian variant on a little-endian machines - depending on header inclusion order. [!!!] NOTE [!!!] This patch may adversely change the userspace API. It might be better to fix the ordering of events_hi, events_lo, cp_events_hi and cp_events_lo in struct mdp_superblock_s / typedef mdp_super_t. Signed-off-by: David Howells <dhowells@redhat.com> Acked-by: NeilBrown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-03-13UAPI: fix endianness conditionals in linux/acct.hDavid Howells1-2/+4
In the UAPI header files, __BIG_ENDIAN and __LITTLE_ENDIAN must be compared against __BYTE_ORDER in preprocessor conditionals where these are exposed to userspace (that is they're not inside __KERNEL__ conditionals). However, in the main kernel the norm is to check for "defined(__XXX_ENDIAN)" rather than comparing against __BYTE_ORDER and this has incorrectly leaked into the userspace headers. The definition of ACCT_BYTEORDER in linux/acct.h is wrong in this way. Note that userspace will likely interpret this incorrectly as the big-endian variant on little-endian machines - depending on header inclusion order. [!!!] NOTE [!!!] This patch may adversely change the userspace API. It might be better to fix the value of ACCT_BYTEORDER. Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-03-13UAPI: fix endianness conditionals in linux/aio_abi.hDavid Howells1-2/+2
In the UAPI header files, __BIG_ENDIAN and __LITTLE_ENDIAN must be compared against __BYTE_ORDER in preprocessor conditionals where these are exposed to userspace (that is they're not inside __KERNEL__ conditionals). However, in the main kernel the norm is to check for "defined(__XXX_ENDIAN)" rather than comparing against __BYTE_ORDER and this has incorrectly leaked into the userspace headers. The definition of PADDED() in linux/aio_abi.h is wrong in this way. Note that userspace will likely interpret this and thus the order of fields in struct iocb incorrectly as the little-endian variant on big-endian machines - depending on header inclusion order. [!!!] NOTE [!!!] This patch may adversely change the userspace API. It might be better to fix the ordering of aio_key and aio_reserved1 in struct iocb. Signed-off-by: David Howells <dhowells@redhat.com> Acked-by: Benjamin LaHaise <bcrl@kvack.org> Acked-by: Jeff Moyer <jmoyer@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-03-13decompressors: fix typo "POWERPC"Paul Bolle1-1/+1
Commit 5dc49c75a26b ("decompressors: make the default XZ_DEC_* config match the selected architecture") added default y if POWERPC to lib/xz/Kconfig. But there is no Kconfig symbol POWERPC. The most general Kconfig symbol for the powerpc architecture is PPC. So let's use that. Signed-off-by: Paul Bolle <pebolle@tiscali.nl> Cc: Florian Fainelli <florian@openwrt.org> Cc: Lasse Collin <lasse.collin@tukaani.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-03-13mm/fremap.c: fix oops on error pathAndrew Morton1-2/+4
If find_vma() fails, sys_remap_file_pages() will dereference `vma', which contains NULL. Fix it by checking the pointer. (We could alternatively check for err==0, but this seems more direct) (The vm_flags change is to squish a bogus used-uninitialised warning without adding extra code). Reported-by: Tommi Rantala <tt.rantala@gmail.com> Cc: Michel Lespinasse <walken@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-03-13idr: deprecate idr_pre_get() and idr_get_new[_above]()Tejun Heo2-52/+55
Now that all in-kernel users are converted to ues the new alloc interface, mark the old interface deprecated. We should be able to remove these in a few releases. Signed-off-by: Tejun Heo <tj@kernel.org> Cc: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-03-13tidspbridge: convert to idr_alloc()Tejun Heo1-44/+26
idr_get_new*() and friends are about to be deprecated. Convert to the new idr_alloc() interface. There are some peculiarities and possible bugs in the converted functions. This patch preserves those. * drv_insert_node_res_element() returns -ENOMEM on alloc failure, -EFAULT if id space is exhausted. -EFAULT is at best misleading. * drv_proc_insert_strm_res_element() is even weirder. It returns -EFAULT if kzalloc() fails, -ENOMEM if idr preloading fails and -EPERM if id space is exhausted. What's going on here? * drv_proc_insert_strm_res_element() doesn't free *pstrm_res after failure. Only compile tested. Signed-off-by: Tejun Heo <tj@kernel.org> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Víctor Manuel Jáquez Leal <vjaquez@igalia.com> Cc: Rene Sapiens <rene.sapiens@ti.com> Cc: Armando Uribe <x0095078@ti.com> Cc: Omar Ramirez Luna <omar.ramirez@ti.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-03-13zcache: convert to idr_alloc()Tejun Heo1-15/+10
idr_get_new*() and friends are about to be deprecated. Convert to the new idr_alloc() interface. Only compile tested. Signed-off-by: Tejun Heo <tj@kernel.org> Cc: Dan Magenheimer <dan.magenheimer@oracle.com> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-03-13mlx4: remove leftover idr_pre_get() callTejun Heo1-1/+0
Commit 6a9200603d76 ("IB/mlx4: convert to idr_alloc()") forgot to remove idr_pre_get() call in mlx4_ib_cm_paravirt_init(). It's unnecessary and idr_pre_get() will soon be deprecated. Remove it. Signed-off-by: Tejun Heo <tj@kernel.org> Cc: Jack Morgenstein <jackm@dev.mellanox.co.il> Cc: Or Gerlitz <ogerlitz@mellanox.com> Cc: Roland Dreier <roland@purestorage.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-03-13workqueue: convert to idr_alloc()Tejun Heo1-3/+4
idr_get_new*() and friends are about to be deprecated. Convert to the new idr_alloc() interface. Signed-off-by: Tejun Heo <tj@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-03-13nfsd: convert to idr_alloc()Tejun Heo1-3/+2
idr_get_new*() and friends are about to be deprecated. Convert to the new idr_alloc() interface. Only compile-tested. Signed-off-by: Tejun Heo <tj@kernel.org> Acked-by: J. Bruce Fields <bfields@redhat.com> Tested-by: J. Bruce Fields <bfields@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-03-13nfsd: remove unused get_new_stid()Tejun Heo1-31/+0
get_new_stid() is no longer used since commit 3abdb607125 ("nfsd4: simplify idr allocation"). Remove it. Signed-off-by: Tejun Heo <tj@kernel.org> Acked-by: J. Bruce Fields <bfields@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-03-13kernel/signal.c: use __ARCH_HAS_SA_RESTORER instead of SA_RESTORERAndrew Morton1-1/+1
__ARCH_HAS_SA_RESTORER is the preferred conditional for use in 3.9 and later kernels, per Kees. Cc: Emese Revfy <re.emese@gmail.com> Cc: Emese Revfy <re.emese@gmail.com> Cc: PaX Team <pageexec@freemail.hu> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Oleg Nesterov <oleg@redhat.com> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Cc: Serge Hallyn <serge.hallyn@canonical.com> Cc: Julien Tinnes <jln@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-03-13signal: always clear sa_restorer on execveKees Cook1-0/+3
When the new signal handlers are set up, the location of sa_restorer is not cleared, leaking a parent process's address space location to children. This allows for a potential bypass of the parent's ASLR by examining the sa_restorer value returned when calling sigaction(). Based on what should be considered "secret" about addresses, it only matters across the exec not the fork (since the VMAs haven't changed until the exec). But since exec sets SIG_DFL and keeps sa_restorer, this is where it should be fixed. Given the few uses of sa_restorer, a "set" function was not written since this would be the only use. Instead, we use __ARCH_HAS_SA_RESTORER, as already done in other places. Example of the leak before applying this patch: $ cat /proc/$$/maps ... 7fb9f3083000-7fb9f3238000 r-xp 00000000 fd:01 404469 .../libc-2.15.so ... $ ./leak ... 7f278bc74000-7f278be29000 r-xp 00000000 fd:01 404469 .../libc-2.15.so ... 1 0 (nil) 0x7fb9f30b94a0 2 4000000 (nil) 0x7f278bcaa4a0 3 4000000 (nil) 0x7f278bcaa4a0 4 0 (nil) 0x7fb9f30b94a0 ... [akpm@linux-foundation.org: use SA_RESTORER for backportability] Signed-off-by: Kees Cook <keescook@chromium.org> Reported-by: Emese Revfy <re.emese@gmail.com> Cc: Emese Revfy <re.emese@gmail.com> Cc: PaX Team <pageexec@freemail.hu> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Oleg Nesterov <oleg@redhat.com> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Cc: Serge Hallyn <serge.hallyn@canonical.com> Cc: Julien Tinnes <jln@google.com> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-03-13mm: remove_memory(): fix end_pfn settingToshi Kani1-1/+1
remove_memory() calls walk_memory_range() with [start_pfn, end_pfn), where end_pfn is exclusive in this range. Therefore, end_pfn needs to be set to the next page of the end address. Signed-off-by: Toshi Kani <toshi.kani@hp.com> Cc: Wen Congyang <wency@cn.fujitsu.com> Cc: Tang Chen <tangchen@cn.fujitsu.com> Cc: Kamezawa Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Cc: Jiang Liu <jiang.liu@huawei.com> Cc: Jianguo Wu <wujianguo@huawei.com> Cc: Lai Jiangshan <laijs@cn.fujitsu.com> Cc: Wu Jianguo <wujianguo@huawei.com> Cc: Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-03-13include/linux/res_counter.h needs errno.hAndrew Morton1-0/+1
alpha allmodconfig: In file included from mm/memcontrol.c:28: include/linux/res_counter.h: In function 'res_counter_set_limit': include/linux/res_counter.h:203: error: 'EBUSY' undeclared (first use in this function) include/linux/res_counter.h:203: error: (Each undeclared identifier is reported only once include/linux/res_counter.h:203: error: for each function it appears in.) Cc: Kamezawa Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Cc: Glauber Costa <glommer@parallels.com> Cc: Tejun Heo <tj@kernel.org> Cc: Frederic Weisbecker <fweisbec@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-03-13Merge tag 'usb-3.9-rc2' of ↵Linus Torvalds38-218/+531
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb Pull USB fixes from Greg Kroah-Hartman: "Here are a number of tiny USB fixes and new USB device ids for your 3.9 tree. The "largest" one here is a revert of a usb-storage patch that turned out to be incorrect, breaking existing users, which is never a good thing. Everything else is pretty simple and small" * tag 'usb-3.9-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (43 commits) USB: quatech2: only write to the tty if the port is open. qcserial: bind to DM/DIAG port on Gobi 1K devices USB: cdc-wdm: fix buffer overflow usb: serial: Add Rigblaster Advantage to device table qcaux: add Franklin U600 usb: musb: core: fix possible build error with randconfig usb: cp210x new Vendor/Device IDs usb: gadget: pxa25x: fix disconnect reporting usb: dwc3: ep0: fix sparc64 build usb: c67x00 RetryCnt value in c67x00 TD should be 3 usb: Correction to c67x00 TD data length mask usb: Makefile: fix drivers/usb/phy/ Makefile entry USB: added support for Cinterion's products AH6 and PLS8 usb: gadget: fix omap_udc build errors USB: storage: fix Huawei mode switching regression USB: storage: in-kernel modeswitching is deprecated tools: usb: ffs-test: Fix build failure USB: option: add Huawei E5331 usb: musb: omap2430: fix sparse warning usb: musb: omap2430: fix omap_musb_mailbox glue check again ...
2013-03-13Merge tag 'tty-3.9-rc2' of ↵Linus Torvalds11-33/+91
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty Pull tty/serial fixes from Greg Kroah-Hartman: "Here are some tty/serial driver fixes for 3.9 We finally mute the annoying WARN_ON that lots of people are hitting and it turns out isn't needed anymore. Also add a few new device ids and a some other minor fixes." * tag 'tty-3.9-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: tty: serial: fix typo "SERIAL_S3C2412" serial: 8250: Keep 8250.<xxxx> module options functional after driver rename tty: serial: fix typo "ARCH_S5P6450" tty/8250_pnp: serial port detection regression since v3.7 serial: bcm63xx_uart: fix compilation after "TTY: switch tty_insert_flip_char" serial: 8250_pci: add support for another kind of NetMos Technology PCI 9835 Multi-I/O Controller Fix 4 port and add support for 8 port 'Unknown' PCI serial port cards tty/serial: Add support for Altera serial port tty: serial: vt8500: Unneccessary duplicated clock code removed tty: serial: mpc5xxx: fix PSC clock name bug TTY: disable debugging warning
2013-03-13Merge tag 'staging-3.9-rc2' of ↵Linus Torvalds11-90/+126
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging Pull staging tree fixes from Greg Kroah-Hartman: "Here are some drivers/staging and drivers/iio fixes for 3.9 (the two are still pretty intertwined, hence them coming both from my tree still.) Nothing major, just a few things that have been reported by users, all of these have been in linux-next for a while." * tag 'staging-3.9-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: staging: comedi: dt9812: use CR_CHAN() for channel number staging/vt6656: Fix too large integer constant warning on 32-bit staging: comedi: drivers: usbduxsigma.c: fix DMA buffers on stack staging: imx/drm: request irq only after adding the crtc staging: comedi: drivers: usbduxfast.c: fix for DMA buffers on stack staging: comedi: drivers: usbdux.c: fix DMA buffers on stack staging: vt6656: Fix oops on resume from suspend. iio:common:st_sensors fixed all warning messages about uninitialized variables iio: Fix build error seen if IIO_TRIGGER is defined but IIO_BUFFER is not iio/imu: inv_mpu6050 depends on IIO_BUFFER iio:ad5064: Initialize register cache correctly iio:ad5064: Fix off by one in DAC value range check iio:ad5064: Fix address of the second channel for ad5065/ad5045/ad5025
2013-03-13userns: Don't allow CLONE_NEWUSER | CLONE_FSEric W. Biederman2-1/+8
Don't allowing sharing the root directory with processes in a different user namespace. There doesn't seem to be any point, and to allow it would require the overhead of putting a user namespace reference in fs_struct (for permission checks) and incrementing that reference count on practically every call to fork. So just perform the inexpensive test of forbidding sharing fs_struct acrosss processes in different user namespaces. We already disallow other forms of threading when unsharing a user namespace so this should be no real burden in practice. This updates setns, clone, and unshare to disallow multiple user namespaces sharing an fs_struct. Cc: stable@vger.kernel.org Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-03-13USB: quatech2: only write to the tty if the port is open.Bill Pemberton1-2/+5
The commit 2e124b4a390ca85325fae75764bef92f0547fa25 removed the checks that prevented qt2_process_read_urb() from trying to put chars into ttys that weren't actually opened. This resulted in 'tty is NULL' warnings from flush_to_ldisc() when the device was used. The devices use just one read urb for all ports. As a result qt2_process_read_urb() may be called with the current port set to a port number that has not been opened. Add a check if the port is open before calling tty_flip_buffer_push(). Signed-off-by: Bill Pemberton <wfp5p@virginia.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-03-13qcserial: bind to DM/DIAG port on Gobi 1K devicesDan Williams1-2/+5
Turns out we just need altsetting 1 and then we can talk to it. Signed-off-by: Dan Williams <dcbw@redhat.com> Cc: stable <stable@vger.kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-03-13ext2: Fix BUG_ON in evict() on inode deletionJan Kara2-1/+2
Commit 8e3dffc6 introduced a regression where deleting inode with large extended attributes leads to triggering BUG_ON(inode->i_state != (I_FREEING | I_CLEAR)) in fs/inode.c:evict(). That happens because freeing of xattr block dirtied the inode and it happened after clear_inode() has been called. Fix the issue by moving removal of xattr block into ext2_evict_inode() before clear_inode() call close to a place where data blocks are truncated. That is also more logical place and removes surprising requirement that ext2_free_blocks() mustn't dirty the inode. Reported-by: Tyler Hicks <tyhicks@canonical.com> Signed-off-by: Jan Kara <jack@suse.cz>
2013-03-12futex: fix kernel-doc notation and spelloRandy Dunlap1-23/+23
Fix kernel-doc warning in futex.c and convert 'Returns' to the new Return: kernel-doc notation format. Warning(kernel/futex.c:2286): Excess function parameter 'clockrt' description in 'futex_wait_requeue_pi' Fix one spello. Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-03-12signals: fix new kernel-doc warningsRandy Dunlap1-1/+1
Fix new kernel-doc warnings in kernel/signal.c: Warning(kernel/signal.c:2689): No description found for parameter 'uset' Warning(kernel/signal.c:2689): Excess function parameter 'set' description in 'sys_rt_sigpending' Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Cc: Alexander Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-03-12idr: fix new kernel-doc warningsRandy Dunlap2-2/+1
Fix new kernel-doc warnings in idr: Warning(include/linux/idr.h:113): No description found for parameter 'idr' Warning(include/linux/idr.h:113): Excess function parameter 'idp' description in 'idr_find' Warning(lib/idr.c:232): Excess function parameter 'id' description in 'sub_alloc' Warning(lib/idr.c:232): Excess function parameter 'id' description in 'sub_alloc' Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Acked-by: Tejun Heo <tj@kernel.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-03-12Merge tag 'fixes-for-linus' of ↵Linus Torvalds1-2/+11
git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux Pull virtio rng buffix from Rusty Russell: "Simple virtio-rng fix." * tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux: virtio: rng: disallow multiple device registrations, fixes crashes
2013-03-12Merge tag 'stable/for-linus-3.9-rc2-tag' of ↵Linus Torvalds7-30/+17
git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen Pull Xen fixes from Konrad Rzeszutek Wilk: - Compile warnings and errors (one on x86, two on ARM) - WARNING in xen-pciback - Use the acpi_processor_get_performance_info instead of the 'register' version * tag 'stable/for-linus-3.9-rc2-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen: xen/acpi: remove redundant acpi/acpi_drivers.h include xen: arm: mandate EABI and use generic atomic operations. acpi: Export the acpi_processor_get_performance_info xen/pciback: Don't disable a PCI device that is already disabled.
2013-03-12fs: Readd the fs module aliases.Eric W. Biederman6-0/+7
I had assumed that the only use of module aliases for filesystems prior to "fs: Limit sys_mount to only request filesystem modules." was in request_module. It turns out I was wrong. At least mkinitcpio in Arch linux uses these aliases. So readd the preexising aliases, to keep from breaking userspace. Userspace eventually will have to follow and use the same aliases the kernel does. So at some point we may be delete these aliases without problems. However that day is not today. Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
2013-03-12USB: cdc-wdm: fix buffer overflowOliver Neukum1-3/+20
The buffer for responses must not overflow. If this would happen, set a flag, drop the data and return an error after user space has read all remaining data. Signed-off-by: Oliver Neukum <oliver@neukum.org> CC: stable@kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-03-12MAINTAINERS: Add maintainer for MAX6697, INA209, and INA2XX driversGuenter Roeck1-0/+25
I actively maintain those drivers and have hardware available to test changes, so add me as explicit maintainer. Signed-off-by: Guenter Roeck <linux@roeck-us.net> Acked-by: Jean Delvare <khali@linux-fr.org>
2013-03-12Select VIRT_TO_BUS directly where neededStephen Rothwell24-31/+28
In commit 887cbce0adea ("arch Kconfig: centralise ARCH_NO_VIRT_TO_BUS") I introduced the config sybmol HAVE_VIRT_TO_BUS and selected that where needed. I am not sure what I was thinking. Instead, just directly select VIRT_TO_BUS where it is needed. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-03-12Fix: compat_rw_copy_check_uvector() misuse in aio, readv, writev, and ↵Mathieu Desnoyers3-18/+9
security keys Looking at mm/process_vm_access.c:process_vm_rw() and comparing it to compat_process_vm_rw() shows that the compatibility code requires an explicit "access_ok()" check before calling compat_rw_copy_check_uvector(). The same difference seems to appear when we compare fs/read_write.c:do_readv_writev() to fs/compat.c:compat_do_readv_writev(). This subtle difference between the compat and non-compat requirements should probably be debated, as it seems to be error-prone. In fact, there are two others sites that use this function in the Linux kernel, and they both seem to get it wrong: Now shifting our attention to fs/aio.c, we see that aio_setup_iocb() also ends up calling compat_rw_copy_check_uvector() through aio_setup_vectored_rw(). Unfortunately, the access_ok() check appears to be missing. Same situation for security/keys/compat.c:compat_keyctl_instantiate_key_iov(). I propose that we add the access_ok() check directly into compat_rw_copy_check_uvector(), so callers don't have to worry about it, and it therefore makes the compat call code similar to its non-compat counterpart. Place the access_ok() check in the same location where copy_from_user() can trigger a -EFAULT error in the non-compat code, so the ABI behaviors are alike on both compat and non-compat. While we are here, fix compat_do_readv_writev() so it checks for compat_rw_copy_check_uvector() negative return values. And also, fix a memory leak in compat_keyctl_instantiate_key_iov() error handling. Acked-by: Linus Torvalds <torvalds@linux-foundation.org> Acked-by: Al Viro <viro@ZenIV.linux.org.uk> Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-03-12Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linuxLinus Torvalds4-4/+10
Pull drm nouveau fixes from Dave Airlie: "This is just nouveau fixes from Ben, one fixes a nasty oops that some Fedora people have been seeing, so I'd like to get it out of the way." * 'drm-fixes' of git://people.freedesktop.org/~airlied/linux: drm/nv50: use correct tiling methods for m2mf buffer moves drm/nouveau: idle channel before releasing notify object drm/nouveau: fix regression in vblanking drm/nv50: encoder creation failure doesn't mean full init failure
2013-03-12Merge tag 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-socLinus Torvalds57-97/+131
Pull ARM SoC fixes from Arnd Bergmann: "These bug fixes are for the largest part for mvebu/kirkwood, which saw a few regressions after the clock infrastructure was enabled, and for OMAP, which showed a few more preexisting bugs with the new multiplatform support. Other small fixes are for imx, mxs, tegra, spear and socfpga" * tag 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (37 commits) ARM: spear3xx: Use correct pl080 header file Arm: socfpga: pl330: Add #dma-cells for generic dma binding support ARM: multiplatform: Sort the max gpio numbers. ARM: imx: fix typo "DEBUG_IMX50_IMX53_UART" ARM: imx: pll1_sys should be an initial on clk arm: mach-orion5x: fix typo in compatible string of a .dts file arm: mvebu: fix address-cells in mpic DT node arm: plat-orion: fix address decoding when > 4GB is used arm: mvebu: Reduce reg-io-width with UARTs ARM: Dove: add RTC device node arm: mvebu: enable the USB ports on Armada 370 Reference Design board ARM: dove: drop "select COMMON_CLK_DOVE" rtc: rtc-mv: Add support for clk to avoid lockups gpio: mvebu: Add clk support to prevent lockup ARM: kirkwood: fix to retain gbe MAC addresses for DT kernels ARM: kirkwood: of_serial: fix clock gating by removing clock-frequency ARM: mxs: cfa10049: Fix fb initialisation function ARM: SPEAr13xx: Fix typo "ARCH_HAVE_CPUFREQ" ARM: OMAP: RX-51: add missing USB phy binding clk: Tegra: Remove duplicate smp_twd clock ...
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