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2010-10-04perf_events: Fix invalid pointer when pid is invalidStephane Eranian1-1/+6
This patch fixes an error in perf_event_open() when the pid provided by the user is invalid. find_lively_task_by_vpid() does not return NULL on error but an error code. Without the fix the error code was silently passed to find_get_context() which would eventually cause a invalid pointer dereference. Signed-off-by: Stephane Eranian <[email protected]> Cc: [email protected] Cc: [email protected] Cc: [email protected] Cc: [email protected] Cc: [email protected] Cc: [email protected] Cc: [email protected] LKML-Reference: <[email protected]> Signed-off-by: Ingo Molnar <[email protected]>
2010-09-24jump label: Fix GCC feature check when distcc is usedIngo Molnar1-1/+1
The following build bug occurs on distcc builds: CC arch/x86/kernel/asm-offsets.s In file included from include/linux/module.h:24, from include/linux/crypto.h:22, from arch/x86/kernel/asm-offsets_64.c:9, from arch/x86/kernel/asm-offsets.c:5: include/trace/events/module.h: In function 'trace_module_load': include/trace/events/module.h:18: error: expected '(' before 'goto' include/trace/events/module.h:18: error: expected identifier or '*' before '(' token It triggers because distcc is invoked by turning $CC into "distcc gcc", but gcc-goto.sh check script was using $1 not $@ to expand parameters. Cc: Jason Baron <[email protected]> Cc: Steven Rostedt <[email protected]> LKML-Reference: <[email protected]> Signed-off-by: Ingo Molnar <[email protected]>
2010-09-24Merge branch 'tip/perf/core' of ↵Ingo Molnar33-209/+843
git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-2.6-trace into perf/core
2010-09-23Merge branch 'linus' into perf/coreIngo Molnar15-116/+221
Conflicts: arch/sparc/kernel/perf_event.c Merge reason: Resolve the conflict. Signed-off-by: Ingo Molnar <[email protected]>
2010-09-22jump label/x86/sparc64: Remove !CC_OPTIMIZE_FOR_SIZE config conditionsSteven Rostedt2-2/+2
The !CC_OPTIMIZE_FOR_SIZE was added to enable the jump label functionality because Jason noticed that the gcc option would not optimize the labels and may even hurt performance. But this is a gcc problem not a kernel one. Removing this condition should add motivation to the gcc developers to actually fix it. Cc: Jason Baron <[email protected]> Acked-by: David S. Miller <[email protected]> Signed-off-by: Steven Rostedt <[email protected]>
2010-09-22jump label: Remove duplicate structure for x86Steven Rostedt1-11/+1
The structure in the x86 jump label code uses the typedef jump_label_t, which is defined by the #ifdef arch type. The structure does not need to be duplicated there. Signed-off-by: Steven Rostedt <[email protected]>
2010-09-22jump label: Add sparc64 supportDavid S. Miller5-0/+88
Add jump label support for sparc64. Signed-off-by: David S. Miller <[email protected]> LKML-Reference: <3b5b071fcdb2afb7f67cacecfa78b14c740278a7.1284733808.git.jbaron@redhat.com> Signed-off-by: Jason Baron <[email protected]> [ cleaned up some formatting ] Signed-off-by: Steven Rostedt <[email protected]>
2010-09-22jump label: x86 supportJason Baron5-1/+102
add x86 support for jump label. I'm keeping this patch separate so its clear to arch maintainers what was required for x86 support this new feature. Hopefully, it wouldn't be too painful for other archs. Signed-off-by: Jason Baron <[email protected]> LKML-Reference: <f838f49f40fbea0254036194be66dc48b598dcea.1284733808.git.jbaron@redhat.com> [ cleaned up some formatting ] Signed-off-by: Steven Rostedt <[email protected]>
2010-09-22jump label: Convert dynamic debug to use jump labelsJason Baron5-132/+26
Convert the 'dynamic debug' infrastructure to use jump labels. Signed-off-by: Jason Baron <[email protected]> LKML-Reference: <b77627358cea3e27d7be4386f45f66219afb8452.1284733808.git.jbaron@redhat.com> Signed-off-by: Steven Rostedt <[email protected]>
2010-09-22jump label: Tracepoint support for jump labelsJason Baron2-3/+16
Make use of the jump label infrastructure for tracepoints. Signed-off-by: Jason Baron <[email protected]> LKML-Reference: <a9ba2056e2c9cf332c3c300b577463ce66ff23a8.1284733808.git.jbaron@redhat.com> Signed-off-by: Steven Rostedt <[email protected]>
2010-09-22jump label: Add jump_label_text_reserved() to reserve jump pointsJason Baron4-3/+94
Add a jump_label_text_reserved(void *start, void *end), so that other pieces of code that want to modify kernel text, can first verify that jump label has not reserved the instruction. Acked-by: Masami Hiramatsu <[email protected]> Signed-off-by: Jason Baron <[email protected]> LKML-Reference: <06236663a3a7b1c1f13576bb9eccb6d9c17b7bfe.1284733808.git.jbaron@redhat.com> Signed-off-by: Steven Rostedt <[email protected]>
2010-09-22jump label: Initialize workqueue tracepoints *before* they are registeredJason Baron1-5/+5
Initialize the workqueue data structures *before* they are registered so that they are ready for callbacks. Signed-off-by: Jason Baron <[email protected]> LKML-Reference: <e3a3383fc370ac7086625bebe89d9480d7caf372.1284733808.git.jbaron@redhat.com> Signed-off-by: Steven Rostedt <[email protected]>
2010-09-22jump label: Base patch for jump labelJason Baron12-4/+442
base patch to implement 'jump labeling'. Based on a new 'asm goto' inline assembly gcc mechanism, we can now branch to labels from an 'asm goto' statment. This allows us to create a 'no-op' fastpath, which can subsequently be patched with a jump to the slowpath code. This is useful for code which might be rarely used, but which we'd like to be able to call, if needed. Tracepoints are the current usecase that these are being implemented for. Acked-by: David S. Miller <[email protected]> Signed-off-by: Jason Baron <[email protected]> LKML-Reference: <ee8b3595967989fdaf84e698dc7447d315ce972a.1284733808.git.jbaron@redhat.com> [ cleaned up some formating ] Signed-off-by: Steven Rostedt <[email protected]>
2010-09-22Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6Linus Torvalds4-104/+171
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6: sparc: Prevent no-handler signal syscall restart recursion. sparc: Don't mask signal when we can't setup signal frame. sparc64: Fix race in signal instruction flushing. sparc64: Support RAW perf events.
2010-09-22Merge branch 'linus' into perf/coreIngo Molnar26-145/+204
Conflicts: kernel/hw_breakpoint.c Merge reason: resolve the conflict. Signed-off-by: Ingo Molnar <[email protected]>
2010-09-22powerpc: fix double syscall restartsAl Viro3-3/+4
Make sigreturn zero regs->trap, make do_signal() do the same on all paths. As it is, signal interrupting e.g. read() from fd 512 (== ERESTARTSYS) with another signal getting unblocked when the first handler finishes will lead to restart one insn earlier than it ought to. Same for multiple signals with in-kernel handlers interrupting that sucker at the same time. Same for multiple signals of any kind interrupting that sucker on 64bit... Signed-off-by: Al Viro <[email protected]> Acked-by: Paul Mackerras <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2010-09-22Merge branch 'for-linus' of git://git.kernel.dk/linux-2.6-blockLinus Torvalds7-9/+43
* 'for-linus' of git://git.kernel.dk/linux-2.6-block: bdi: Fix warnings in __mark_inode_dirty for /dev/zero and friends char: Mark /dev/zero and /dev/kmem as not capable of writeback bdi: Initialize noop_backing_dev_info properly cfq-iosched: fix a kernel OOPs when usb key is inserted block: fix blk_rq_map_kern bio direction flag cciss: freeing uninitialized data on error path
2010-09-22bdi: Fix warnings in __mark_inode_dirty for /dev/zero and friendsJan Kara1-2/+21
Inodes of devices such as /dev/zero can get dirty for example via utime(2) syscall or due to atime update. Backing device of such inodes (zero_bdi, etc.) is however unable to handle dirty inodes and thus __mark_inode_dirty complains. In fact, inode should be rather dirtied against backing device of the filesystem holding it. This is generally a good rule except for filesystems such as 'bdev' or 'mtd_inodefs'. Inodes in these pseudofilesystems are referenced from ordinary filesystem inodes and carry mapping with real data of the device. Thus for these inodes we have to use inode->i_mapping->backing_dev_info as we did so far. We distinguish these filesystems by checking whether sb->s_bdi points to a non-trivial backing device or not. Example: Assume we have an ext3 filesystem on /dev/sda1 mounted on /. There's a device inode A described by a path "/dev/sdb" on this filesystem. This inode will be dirtied against backing device "8:0" after this patch. bdev filesystem contains block device inode B coupled with our inode A. When someone modifies a page of /dev/sdb, it's B that gets dirtied and the dirtying happens against the backing device "8:16". Thus both inodes get filed to a correct bdi list. Cc: [email protected] Signed-off-by: Jan Kara <[email protected]> Signed-off-by: Jens Axboe <[email protected]>
2010-09-22char: Mark /dev/zero and /dev/kmem as not capable of writebackJan Kara2-2/+5
These devices don't do any writeback but their device inodes still can get dirty so mark bdi appropriately so that bdi code does the right thing and files inodes to lists of bdi carrying the device inodes. Cc: [email protected] Signed-off-by: Jan Kara <[email protected]> Signed-off-by: Jens Axboe <[email protected]>
2010-09-22bdi: Initialize noop_backing_dev_info properlyJan Kara1-0/+2
Properly initialize this backing dev info so that writeback code does not barf when getting to it e.g. via sb->s_bdi. Cc: [email protected] Signed-off-by: Jan Kara <[email protected]> Signed-off-by: Jens Axboe <[email protected]>
2010-09-21sparc: Prevent no-handler signal syscall restart recursion.David S. Miller3-1/+7
Explicitly clear the "in-syscall" bit when we have no signal handler and back up the program counters to back up the system call. Reported-by: Al Viro <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2010-09-21sparc: Don't mask signal when we can't setup signal frame.David S. Miller3-58/+93
Don't invoke the signal handler tracehook in that situation either. Reported-by: Al Viro <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2010-09-21Merge branch 'for-linus/i2c/2636-rc5' of git://git.fluff.org/bjdooks/linuxLinus Torvalds1-0/+2
* 'for-linus/i2c/2636-rc5' of git://git.fluff.org/bjdooks/linux: i2c-omap: Make sure i2c bus is free before setting it to idle
2010-09-21fs: {lock,unlock}_flocks() stubs to prepare for BKL removalSage Weil1-0/+4
The lock structs are currently protected by the BKL, but are accessed by code in fs/locks.c and misc file system and DLM code. These stubs will allow all users to switch to the new interface before the implementation is changed to a spinlock. Acked-by: Arnd Bergmann <[email protected]> Signed-off-by: Sage Weil <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2010-09-22i2c-omap: Make sure i2c bus is free before setting it to idleMathias Nyman1-0/+2
If the i2c bus receives an interrupt with both BB (bus busy) and ARDY (register access ready) statuses set during the tranfer of the last message the bus was put to idle while still busy. This caused bus to timeout. Signed-off-by: Mathias Nyman <[email protected]> Acked-by: Tony Lindgren <[email protected]> Signed-off-by: Ben Dooks <[email protected]>
2010-09-21Merge branch 'sched-fixes-for-linus' of ↵Linus Torvalds2-5/+5
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'sched-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: sched: Fix nohz balance kick sched: Fix user time incorrectly accounted as system time on 32-bit
2010-09-21Merge branch 'perf-fixes-for-linus' of ↵Linus Torvalds5-26/+27
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'perf-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: hw breakpoints: Fix pid namespace bug x86: Fix instruction breakpoint encoding oprofile: Add Support for Intel CPU Family 6 / Model 22 (Intel Celeron 540) kprobes: Fix Kconfig dependency
2010-09-21Merge branch 'for-linus' of ↵Linus Torvalds9-83/+84
git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client: ceph: select CRYPTO ceph: check mapping to determine if FILE_CACHE cap is used ceph: only send one flushsnap per cap_snap per mds session ceph: fix cap_snap and realm split ceph: stop sending FLUSHSNAPs when we hit a dirty capsnap ceph: correctly set 'follows' in flushsnap messages ceph: fix dn offset during readdir_prepopulate ceph: fix file offset wrapping at 4GB on 32-bit archs ceph: fix reconnect encoding for old servers ceph: fix pagelist kunmap tail ceph: fix null pointer deref on anon root dentry release
2010-09-21Merge branch 'drm-intel-fixes' of ↵Linus Torvalds8-26/+73
git://git.kernel.org/pub/scm/linux/kernel/git/ickle/drm-intel * 'drm-intel-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/ickle/drm-intel: drm/i915: Hold a reference to the object whilst unbinding the eviction list drm/i915,agp/intel: Add second set of PCI-IDs for B43 drm/i915: Fix Sandybridge fence registers drm/i915/crt: Downgrade warnings for hotplug failures drm/i915: Ensure that the crtcinfo is populated during mode_fixup()
2010-09-21Merge git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linusLinus Torvalds2-6/+13
* git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linus: lguest: update comments to reflect LHCALL_LOAD_GDT_ENTRY. virtio: console: Prevent userspace from submitting NULL buffers virtio: console: Fix poll blocking even though there is data to read
2010-09-21perf: Avoid RCU vs preemption assumptionsPeter Zijlstra1-6/+12
The per-pmu per-cpu context patch converted things from get_cpu_var() to this_cpu_ptr(), but that only works if rcu_read_lock() actually disables preemption, and since there is no such guarantee, we need to fix that. Use the newly introduced {get,put}_cpu_ptr(). Signed-off-by: Peter Zijlstra <[email protected]> Cc: Tejun Heo <[email protected]> LKML-Reference: <[email protected]> Signed-off-by: Ingo Molnar <[email protected]>
2010-09-21percpu: Add {get,put}_cpu_ptrPeter Zijlstra1-0/+9
These are similar to {get,put}_cpu_var() except for dynamically allocated per-cpu memory. Signed-off-by: Peter Zijlstra <[email protected]> Acked-by: Tejun Heo <[email protected]> LKML-Reference: <[email protected]> Signed-off-by: Ingo Molnar <[email protected]>
2010-09-21Merge commit 'v2.6.36-rc5' into perf/coreIngo Molnar184-900/+1712
Merge reason: Pick up the latest fixes in -rc5. Signed-off-by: Ingo Molnar <[email protected]>
2010-09-21sched: Fix nohz balance kickSuresh Siddha1-1/+1
There's a situation where the nohz balancer will try to wake itself: cpu-x is idle which is also ilb_cpu got a scheduler tick during idle and the nohz_kick_needed() in trigger_load_balance() checks for rq_x->nr_running which might not be zero (because of someone waking a task on this rq etc) and this leads to the situation of the cpu-x sending a kick to itself. And this can cause a lockup. Avoid this by not marking ourself eligible for kicking. Signed-off-by: Suresh Siddha <[email protected]> Signed-off-by: Peter Zijlstra <[email protected]> LKML-Reference: <[email protected]> Signed-off-by: Ingo Molnar <[email protected]>
2010-09-21cfq-iosched: fix a kernel OOPs when usb key is insertedVivek Goyal1-3/+13
Mike reported a kernel crash when a usb key hotplug is performed while all kernel thrads are not in a root cgroup and are running in one of the child cgroups of blkio controller. BUG: unable to handle kernel NULL pointer dereference at 0000002c IP: [<c11c7b08>] cfq_get_queue+0x232/0x412 *pde = 00000000 Oops: 0000 [#1] PREEMPT last sysfs file: /sys/devices/pci0000:00/0000:00:1d.7/usb2/2-1/2-1:1.0/host3/scsi_host/host3/uevent [..] Pid: 30039, comm: scsi_scan_3 Not tainted 2.6.35.2-fg.roam #1 Volvi2 /Aspire 4315 EIP: 0060:[<c11c7b08>] EFLAGS: 00010086 CPU: 0 EIP is at cfq_get_queue+0x232/0x412 EAX: f705f9c0 EBX: e977abac ECX: 00000000 EDX: 00000000 ESI: f00da400 EDI: f00da4ec EBP: e977a800 ESP: dff8fd00 DS: 007b ES: 007b FS: 0000 GS: 0000 SS: 0068 Process scsi_scan_3 (pid: 30039, ti=dff8e000 task=f6b6c9a0 task.ti=dff8e000) Stack: 00000000 00000000 00000001 01ff0000 f00da508 00000000 f00da524 f00da540 <0> e7994940 dd631750 f705f9c0 e977a820 e977ac44 f00da4d0 00000001 f6b6c9a0 <0> 00000010 00008010 0000000b 00000000 00000001 e977a800 dd76fac0 00000246 Call Trace: [<c11c7f10>] ? cfq_set_request+0x228/0x34c [<c11c7ce8>] ? cfq_set_request+0x0/0x34c [<c11bb3b9>] ? elv_set_request+0xf/0x1c [<c11bdd51>] ? get_request+0x1ad/0x22f [<c11bddf2>] ? get_request_wait+0x1f/0x11a [<c11d013b>] ? kvasprintf+0x33/0x3b [<c127b537>] ? scsi_execute+0x1d/0x103 [<c127b675>] ? scsi_execute_req+0x58/0x83 [<c127c391>] ? scsi_probe_and_add_lun+0x188/0x7c2 [<c12718c6>] ? attribute_container_add_device+0x15/0xfa [<c11c95d1>] ? kobject_get+0xf/0x13 [<c126d1db>] ? get_device+0x10/0x14 [<c127be93>] ? scsi_alloc_target+0x217/0x24d [<c127cbd8>] ? __scsi_scan_target+0x95/0x480 [<c10204eb>] ? dequeue_entity+0x14/0x1fe [<c1020491>] ? update_curr+0x165/0x1ab [<c1020491>] ? update_curr+0x165/0x1ab [<c127d00d>] ? scsi_scan_channel+0x4a/0x76 [<c127d0b0>] ? scsi_scan_host_selected+0x77/0xad [<c127d13c>] ? do_scan_async+0x0/0x11a [<c127d137>] ? do_scsi_scan_host+0x51/0x56 [<c127d13c>] ? do_scan_async+0x0/0x11a [<c127d14a>] ? do_scan_async+0xe/0x11a [<c127d13c>] ? do_scan_async+0x0/0x11a [<c10354c5>] ? kthread+0x5e/0x63 [<c1035467>] ? kthread+0x0/0x63 [<c1002af6>] ? kernel_thread_helper+0x6/0x10 Code: 44 24 1c 54 83 44 24 18 54 83 fa 03 75 94 8b 06 c7 86 64 02 00 00 01 00 00 00 83 e0 03 09 f0 89 06 8b 44 24 28 8b 90 58 01 00 00 <8b> 42 2c 85 c0 75 03 8b 42 08 8d 54 24 48 52 8d 4c 24 50 51 68 EIP: [<c11c7b08>] cfq_get_queue+0x232/0x412 SS:ESP 0068:dff8fd00 CR2: 000000000000002c ---[ end trace 9a88306573f69b12 ]--- The problem here is that we don't have bdi->dev information available when thread does some IO. Hence when dev_name() tries to access bdi->dev, it crashes. This problem does not happen if kernel threads are in root group as root group is statically allocated at device initialization time and we don't hit this piece of code. Fix it by delaying the filling of major and minor number information of device in blk_group. Initially a blk_group is created with 0 as device information and this information is filled later once some more IO comes in from same group. Reported-by: Mike Kazantsev <[email protected]> Signed-off-by: Vivek Goyal <[email protected]> Signed-off-by: Jens Axboe <[email protected]>
2010-09-21block: fix blk_rq_map_kern bio direction flagBenny Halevy1-1/+1
This bug was introduced in 7b6d91daee5cac6402186ff224c3af39d79f4a0e "block: unify flags for struct bio and struct request" Cc: Boaz Harrosh <[email protected]> Signed-off-by: Benny Halevy <[email protected]> Signed-off-by: Jens Axboe <[email protected]>
2010-09-21cciss: freeing uninitialized data on error pathDan Carpenter1-1/+1
The "h->scatter_list" is allocated inside a for loop. If any of those allocations fail, then the rest of the list is uninitialized data. When we free it we should start from the top and free backwards so that we don't call kfree() on uninitialized pointers. Also if the allocation for "h->scatter_list" fails then we would get an Oops here. I should have noticed this when I send: 4ee69851c "cciss: handle allocation failure." but I didn't. Sorry about that. Signed-off-by: Dan Carpenter <[email protected]> Signed-off-by: Jens Axboe <[email protected]>
2010-09-21Merge remote branch 'linus' into drm-intel-fixesChris Wilson214-1525/+1994
2010-09-20sparc64: Fix race in signal instruction flushing.David S. Miller1-42/+60
If another cpu does a very wide munmap() on the signal frame area, it can tear down the page table hierarchy from underneath us. Borrow an idea from the 64-bit fault path's get_user_insn(), and disable cross call interrupts during the page table traversal to lock them in place while we operate. Reported-by: Al Viro <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2010-09-21lguest: update comments to reflect LHCALL_LOAD_GDT_ENTRY.Rusty Russell1-5/+8
We used to have a hypercall which reloaded the entire GDT, then we switched to one which loaded a single entry (to match the IDT code). Some comments were not updated, so fix them. Signed-off-by: Rusty Russell <[email protected]> Reported by: Eviatar Khen <[email protected]>
2010-09-21virtio: console: Prevent userspace from submitting NULL buffersAmit Shah1-0/+4
A userspace could submit a buffer with 0 length to be written to the host. Prevent such a situation. This was not needed previously, but recent changes in the way write() works exposed this condition to trigger a virtqueue event to the host, causing a NULL buffer to be sent across. Signed-off-by: Amit Shah <[email protected]> Signed-off-by: Rusty Russell <[email protected]> CC: [email protected]
2010-09-21virtio: console: Fix poll blocking even though there is data to readHans de Goede1-1/+1
I found this while working on a Linux agent for spice, the symptom I was seeing was select blocking on the spice vdagent virtio serial port even though there were messages queued up there. virtio_console's port_fops_poll checks port->inbuf != NULL to determine if read won't block. However if an application reads enough bytes from inbuf through port_fops_read, to empty the current port->inbuf, port->inbuf will be NULL even though there may be buffers left in the virtqueue. This causes poll() to block even though there is data to be read, this patch fixes this by using will_read_block(port) instead of the port->inbuf != NULL check. Signed-off-By: Hans de Goede <[email protected]> Signed-off-by: Amit Shah <[email protected]> Signed-off-by: Rusty Russell <[email protected]> Cc: [email protected]
2010-09-20Linux 2.6.36-rc5Linus Torvalds1-1/+1
2010-09-20Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging-2.6Linus Torvalds3-22/+10
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging-2.6: Staging: vt6655: fix buffer overflow Revert: "Staging: batman-adv: Adding netfilter-bridge hooks"
2010-09-20Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6Linus Torvalds6-32/+66
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6: USB: musb: MAINTAINERS: Fix my mail address USB: serial/mos*: prevent reading uninitialized stack memory USB: otg: twl4030: fix phy initialization(v1) USB: EHCI: Disable langwell/penwell LPM capability usb: musb_debugfs: don't use the struct file private_data field with seq_files
2010-09-20Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty-2.6Linus Torvalds2-15/+11
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty-2.6: serial: mfd: fix bug in serial_hsu_remove() serial: amba-pl010: fix set_ldisc
2010-09-20Staging: vt6655: fix buffer overflowDan Carpenter1-3/+8
"param->u.wpa_associate.wpa_ie_len" comes from the user. We should check it so that the copy_from_user() doesn't overflow the buffer. Also further down in the function, we assume that if "param->u.wpa_associate.wpa_ie_len" is set then "abyWPAIE[0]" is initialized. To make that work, I changed the test here to say that if "wpa_ie_len" is set then "wpa_ie" has to be a valid pointer or we return -EINVAL. Oddly, we only use the first element of the abyWPAIE[] array. So I suspect there may be some other issues in this function. Signed-off-by: Dan Carpenter <[email protected]> Cc: stable <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2010-09-20Revert: "Staging: batman-adv: Adding netfilter-bridge hooks"Sven Eckelmann2-19/+2
This reverts commit 96d592ed599434d2d5f339a1d282871bc6377d2c. The netfilter hook seems to be misused and may leak skbs in situations when NF_HOOK returns NF_STOLEN. It may not filter everything as expected. Also the ethernet bridge tables are not yet capable to understand batman-adv packet correctly. It was only added for testing purposes and can be removed again. Reported-by: Vasiliy Kulikov <[email protected]> Signed-off-by: Sven Eckelmann <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2010-09-20serial: mfd: fix bug in serial_hsu_remove()Feng Tang1-8/+9
Medfield HSU driver deal with 4 pci devices(3 uart ports + 1 dma controller), so in pci remove func, we need handle them differently Signed-off-by: Feng Tang <[email protected]> Signed-off-by: Alan Cox <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2010-09-20serial: amba-pl010: fix set_ldiscMika Westerberg1-7/+2
Commit d87d9b7d1 ("tty: serial - fix tty referencing in set_ldisc") changed set_ldisc to take ldisc number as parameter. This patch fixes AMBA PL010 driver according the new prototype. Signed-off-by: Mika Westerberg <[email protected]> Cc: Alan Cox <[email protected]> Cc: Russell King <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
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