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2009-07-15drm: Move a dereference below a NULL testJulia Lawall
If the NULL test is necessary, then the dereference should be moved below the NULL test. The semantic patch that makes this change is as follows: (http://www.emn.fr/x-info/coccinelle/) // <smpl> @@ type T; expression E; identifier i,fld; statement S; @@ - T i = E->fld; + T i; ... when != E when != i if (E == NULL) S + i = E->fld; // </smpl> Signed-off-by: Julia Lawall <julia@diku.dk> Signed-off-by: Dave Airlie <airlied@linux.ie>
2009-07-15fb/intelfb: conflict with DRM_I915 and hide by defaultJesse Barnes
Users get confused by this driver. It's really a special purpose embedded driver, and causes a lot of problems if enabled. So hide it under EMBEDDED by default, and make sure it doesn't get enabled with the i915 DRM driver. Dave, I'm hoping you can feed this to Linus through your tree. It's appropriate for 2.6.31 I think. Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org> Signed-off-by: Dave Airlie <airlied@linux.ie>
2009-07-15drm/ttm: fix misplaced parenthesesRoel Kluin
Signed-off-by: Roel Kluin <roel.kluin@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Dave Airlie <airlied@linux.ie>
2009-07-15drm/via: Fix vblank IRQ on VIA hardware.Simon Farnsworth
via_enable_vblank wasn't setting the VBlank enable bit - instead, it was masking out the rest of the register. At the same time, fix via_disable_vblank to clear the VBlank enable bit. Signed-off-by: Dave Airlie <airlied@linux.ie>
2009-07-15drm: drm_gem, check kzalloc retvalJiri Slaby
Check kzalloc retval against NULL in drm_gem_object_alloc and bail out appropriately. While at it merge the fail paths and jump to them by gotos at the end of the function. Signed-off-by: Jiri Slaby <jirislaby@gmail.com> Signed-off-by: Dave Airlie <airlied@linux.ie>
2009-07-15drm: drm_debugfs, check kmalloc retvalJiri Slaby
Check kmalloc return value in drm_debugfs_create_files and bail out appropriately if the pointer is NULL. Signed-off-by: Jiri Slaby <jirislaby@gmail.com> Signed-off-by: Dave Airlie <airlied@linux.ie>
2009-07-15drm/radeon: add some missing pci idsAlex Deucher
Also, fix ordering for a couple others Signed-off-by: Alex Deucher <alexdeucher@gmail.com> Signed-off-by: Dave Airlie <airlied@linux.ie>
2009-07-14Merge branch 'i2c-for-2631-rc3' of git://aeryn.fluff.org.uk/bjdooks/linuxLinus Torvalds
* 'i2c-for-2631-rc3' of git://aeryn.fluff.org.uk/bjdooks/linux: i2c: Use resource_size i2c-davinci: behave with i2cdetect i2c-davinci: convert clock usage after clkdev conversion
2009-07-14Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/teigland/dlm * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/teigland/dlm: dlm: free socket in error exit path dlm: fix plock use-after-free dlm: Fix uninitialised variable warning in lock.c
2009-07-14Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband: mlx4_core: Add new ConnectX EN PCI ID 0x6764 mlx4_core: Handle multi-physical function devices
2009-07-14Merge branch 'timers-fixes-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'timers-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: hrtimer: Fix migration expiry check hrtimer: migration: do not check expiry time on current CPU
2009-07-14Merge branch 'x86-fixes-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: x86: Fix warning in pvclock.c x86, apic: Fix false positive section mismatch in numaq_32.c x86: Fix false positive section mismatch in es7000_32.c x86: Remove spurious printk level from segfault message
2009-07-14Merge branch 'core-fixes-for-linus-2' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'core-fixes-for-linus-2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: futexes: Fix infinite loop in get_futex_key() on huge page
2009-07-14Merge branch 'tracing-fixes-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'tracing-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: tracing/function-profiler: do not free per cpu variable stat tracing/events: Move TRACE_SYSTEM outside of include guard
2009-07-14Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: Revert "NET: Fix locking issues in PPP, 6pack, mkiss and strip line disciplines." skbuff.h: Fix comment for NET_IP_ALIGN drivers/net: using spin_lock_irqsave() in net_send_packet() NET: phy_device, fix lock imbalance gre: fix ToS/DiffServ inherit bug igb: gcc-3.4.6 fix atlx: duplicate testing of MCAST flag NET: Fix locking issues in PPP, 6pack, mkiss and strip line disciplines. netdev: restore MTU change operation netdev: restore MAC address set and validate operations sit: fix regression: do not release skb->dst before xmit net: ip_push_pending_frames() fix net: sk_prot_alloc() should not blindly overwrite memory
2009-07-15i2c: Use resource_sizeJulia Lawall
Use the function resource_size, which reduces the chance of introducing off-by-one errors in calculating the resource size. The semantic patch that makes this change is as follows: (http://www.emn.fr/x-info/coccinelle/) // <smpl> @@ struct resource *res; @@ - (res->end - res->start) + 1 + resource_size(res) // </smpl> Signed-off-by: Julia Lawall <julia@diku.dk> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2009-07-15i2c-davinci: behave with i2cdetectDavid Brownell
Make i2c-davinci cope properly with "i2cdetect": don't spew syslog spam on perfectly normal behaviors, or respond to any address other than the one reserved for the SMBus host. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2009-07-15i2c-davinci: convert clock usage after clkdev conversionKevin Hilman
DaVinci core code has converted to the new clkdev API so clock name strings are not needed. Instead, just the a 'struct device' pointer is needed. Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2009-07-14Revert "NET: Fix locking issues in PPP, 6pack, mkiss and strip line ↵David S. Miller
disciplines." This reverts commit adeab1afb7de89555c69aab5ca21300c14af6369. As Alan Cox explained, the TTY layer changes that went recently to get rid of the tty->low_latency stuff fixes this already, and even for -stable it's the ->low_latency changes that should go in to fix this, rather than this patch. Signed-off-by: David S. Miller <davem@davemloft.net>
2009-07-14skbuff.h: Fix comment for NET_IP_ALIGNTobias Klauser
Use the correct function call for skb_reserve in the comment for NET_IP_ALIGN. Signed-off-by: Tobias Klauser <klto@zhaw.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-07-14drivers/net: using spin_lock_irqsave() in net_send_packet()Dongdong Deng
spin_unlock_irq() will enable interrupt in net_send_packet(), this patch changes it to spin_lock_irqsave/spin_lock_irqrestore, so that it doesn't enable interrupts when already disabled, and netconsole would work properly over cs89x0/isa-skeleton. Call trace: netconsole write_msg() { ... -> spin_lock_irqsave(); -> netpoll_send_udp() -> netpoll_send_skb() -> net_send_packet() ->... -> spin_unlock_irqrestore(); ... } Signed-off-by: Dongdong Deng <dongdong.deng@windriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-07-14NET: phy_device, fix lock imbalanceJiri Slaby
Don't forget to unlock a mutex in phy_scan_fixups on a fail path. Signed-off-by: Jiri Slaby <jirislaby@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-07-14dlm: free socket in error exit pathCasey Dahlin
In the tcp_connect_to_sock() error exit path, the socket allocated at the top of the function was not being freed. Signed-off-by: Casey Dahlin <cdahlin@redhat.com> Signed-off-by: David Teigland <teigland@redhat.com>
2009-07-14gre: fix ToS/DiffServ inherit bugAndreas Jaggi
Fixes two bugs: - ToS/DiffServ inheritance was unintentionally activated when using impair fixed ToS values - ECN bit was lost during ToS/DiffServ inheritance Signed-off-by: Andreas Jaggi <aj@open.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-07-14x86: Fix warning in pvclock.cDave Jones
when building 32-bit, I see this .. arch/x86/kernel/pvclock.c:63:7: warning: "__x86_64__" is not defined Signed-off-by: Dave Jones <davej@redhat.com> LKML-Reference: <20090713201437.GA12165@redhat.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2009-07-13Linux 2.6.31-rc3Linus Torvalds
2009-07-13Merge branch 'for_linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4 * 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4: jbd2: fix race between write_metadata_buffer and get_write_access ext4: Fix ext4_mb_initialize_context() to initialize all fields ext4: fix null handler of ioctls in no journal mode ext4: Fix buffer head reference leak in no-journal mode ext4: Move __ext4_journalled_writepage() to avoid forward declaration ext4: Fix mmap/truncate race when blocksize < pagesize && !nodellaoc ext4: Fix mmap/truncate race when blocksize < pagesize && delayed allocation ext4: Don't look at buffer_heads outside i_size. ext4: Fix goal inum check in the inode allocator ext4: fix no journal corruption with locale-gen ext4: Calculate required journal credits for inserting an extent properly ext4: Fix truncation of symlinks after failed write jbd2: Fix a race between checkpointing code and journal_get_write_access() ext4: Use rcu_barrier() on module unload. ext4: naturally align struct ext4_allocation_request ext4: mark several more functions in mballoc.c as noinline ext4: Fix potential reclaim deadlock when truncating partial block jbd2: Remove GFP_ATOMIC kmalloc from inside spinlock critical region ext4: Fix type warning on 64-bit platforms in tracing events header
2009-07-13jbd2: fix race between write_metadata_buffer and get_write_accessdingdinghua
The function jbd2_journal_write_metadata_buffer() calls jbd_unlock_bh_state(bh_in) too early; this could potentially allow another thread to call get_write_access on the buffer head, modify the data, and dirty it, and allowing the wrong data to be written into the journal. Fortunately, if we lose this race, the only time this will actually cause filesystem corruption is if there is a system crash or other unclean shutdown of the system before the next commit can take place. Signed-off-by: dingdinghua <dingdinghua85@gmail.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
2009-07-13igb: gcc-3.4.6 fixEric Dumazet
forward declaration of inline function should be avoided, or old gcc cannot compile. Reported-by: Teck Choon Giam <giamteckchoon@gmail.com> Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-07-13atlx: duplicate testing of MCAST flagroel kluin
Fix duplicate testing of MCAST flag Signed-off-by: Roel Kluin <roel.kluin@gmail.com> Acked-by: Jay Cliburn <jcliburn@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-07-13Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging-2.6: Staging: stlc45xx: convert config_interface to bss_info_changed, fixing a build error Staging: comedi: s626: use subvendor:subdevice ids for SAA7146 board Staging: prevent rtl8192su from crashing dev_ioctl in SIOCGIWNAME Staging: prevent rtl8187se from crashing dev_ioctl() in SIOCGIWNAME Staging: rtl8192su: convert to net_device_ops Staging: serqt_usb2: declare qt_open static in serqt_usb2 Staging: serqt_usb2: fix qt_close parameters in serqt_usb2 Staging: comedi: jr3_pci.c: add required includes Staging: meilhaus: add email address to TODO Staging: rspiusb: use NULL virtual address instead of a bogus one Staging: vt6655: compile fix Staging: rt2870: Add USB ID for Sitecom WL-608
2009-07-13Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6: wm97xx_batery: replace driver_data with dev_get_drvdata() omap: video: remove direct access of driver_data Sound: remove direct access of driver_data driver model: fix show/store prototypes in doc. Firmware: firmware_class, fix lock imbalance Driver Core: remove BUS_ID_SIZE sparc: remove driver-core BUS_ID_SIZE partitions: fix broken uevent_suppress conversion devres: WARN() and return, don't crash on device_del() of uninitialized device
2009-07-13Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6: (48 commits) USB: otg: fix module reinsert issue USB: handle zero-length usbfs submissions correctly USB: EHCI: report actual_length for iso transfers USB: option: remove unnecessary and erroneous code USB: cypress_m8: remove invalid Clear-Halt USB: musb_host: undo incorrect change in musb_advance_schedule() USB: fix LANGID=0 regression USB: serial: sierra driver id_table additions USB serial: Add ID for Turtelizer, an FT2232L-based JTAG/RS-232 adapter. USB: fix race leading to a write after kfree in usbfs USB: Sierra: fix oops upon device close USB: option.c: add A-Link 3GU device id USB: Serial: Add support for Arkham Technology adapters USB: Fix option_ms regression in 2.6.31-rc2 USB: gadget audio: select SND_PCM USB: ftdi: support NDI devices Revert USB: usbfs: deprecate and hide option for !embedded USB: usb.h: fix kernel-doc notation USB: RNDIS gadget, fix issues talking from PXA USB: serial: FTDI with product code FB80 and vendor id 0403 ...
2009-07-13update JFS entry in MAINTAINERSDave Kleikamp
JFS hasn't really been supported for a while. It's still maintained, but saying it's supported is a stretch. Updating my preferred email address as well. Signed-off-by: Dave Kleikamp <shaggy@linux.vnet.ibm.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-07-13mn10300: remove duplicated #includeHuang Weiyi
Remove duplicated #include('s) in arch/mn10300/kernel/sys_mn10300.c Signed-off-by: Huang Weiyi <weiyi.huang@gmail.com> Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-07-13Fix staging drivers after smp_lock.h reduxJean Delvare
Commit 405f55712dfe464b3240d7816cc4fe4174831be2 ("headers: smp_lock.h redux") broke the build of two staging drivers. Fix them. Signed-off-by: Jean Delvare <khali@linux-fr.org> Cc: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-07-13ext4: Fix ext4_mb_initialize_context() to initialize all fieldsTheodore Ts'o
Pavel Roskin pointed out that kmemcheck indicated that ext4_mb_store_history() was accessing uninitialized values of ac->ac_tail and ac->ac_buddy leading to garbage in the mballoc history. Fix this by initializing the entire structure to all zeros first. Also, two fields were getting doubly initialized by the caller of ext4_mb_initialize_context, so remove them for efficiency's sake. Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
2009-07-13ext4: fix null handler of ioctls in no journal modePeng Tao
The EXT4_IOC_GROUP_ADD and EXT4_IOC_GROUP_EXTEND ioctls should not flush the journal in no_journal mode. Otherwise, running resize2fs on a mounted no_journal partition triggers the following error messages: BUG: unable to handle kernel NULL pointer dereference at 00000014 IP: [<c039d282>] _spin_lock+0x8/0x19 *pde = 00000000 Oops: 0002 [#1] SMP Signed-off-by: Peng Tao <bergwolf@gmail.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
2009-07-13ext4: Fix buffer head reference leak in no-journal modeCurt Wohlgemuth
We found a problem with buffer head reference leaks when using an ext4 partition without a journal. In particular, calls to ext4_forget() would not to a brelse() on the input buffer head, which will cause pages they belong to to not be reclaimable. Further investigation showed that all places where ext4_journal_forget() and ext4_journal_revoke() are called are subject to the same problem. The patch below changes __ext4_journal_forget/__ext4_journal_revoke to do an explicit release of the buffer head when the journal handle isn't valid. Signed-off-by: Curt Wohlgemuth <curtw@google.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
2009-07-13x86, apic: Fix false positive section mismatch in numaq_32.cRakib Mullick
The variable apic_numaq placed in noninit section references the function wakeup_secondary_cpu_via_nmi(), which is in __cpuinit section. Thus causes a section mismatch warning. To avoid such mismatch we mark apic_numaq as __refdata. We were warned by the following warning: WARNING: arch/x86/kernel/built-in.o(.data+0x932c): Section mismatch in reference from the variable apic_numaq to the function .cpuinit.text:wakeup_secondary_cpu_via_nmi() Signed-off-by: Rakib Mullick <rakib.mullick@gmail.com> LKML-Reference: <b9df5fa10907120407p6b4f67dtf4d563155488188a@mail.gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-07-13x86: Fix false positive section mismatch in es7000_32.cRakib Mullick
The variable apic_es7000_cluster references the function __cpuinit wakeup_secondary_cpu_via_mip() from a noninit section. So we've been warned by the following warning. To avoid possible collision between init/noninit, its best to mark the variable as __refdata. We were warned by the following warning: LD arch/x86/kernel/apic/built-in.o WARNING: arch/x86/kernel/apic/built-in.o(.data+0x198c): Section mismatch in reference from the variable apic_es7000_cluster to the function .cpuinit.text:wakeup_secondary_cpu_via_mip() Signed-off-by: Rakib Mullick <rakib.mullick@gmail.com> LKML-Reference: <b9df5fa10907120404k6279a10ch5e9682432272706f@mail.gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-07-13tracing/function-profiler: do not free per cpu variable statSteven Rostedt
The per cpu variable stat is freeded if we fail to allocate a name on start up. This was due to stat at first being allocated in the initial design. But since then, it has become a static per cpu variable but the free on error was not removed. Also added __init annotation to the function that this is in. [ Impact: prevent possible memory corruption on low mem at boot up ] Signed-off-by: Steven Rostedt <rostedt@goodmis.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-07-13tracing/events: Move TRACE_SYSTEM outside of include guardLi Zefan
If TRACE_INCLDUE_FILE is defined, <trace/events/TRACE_INCLUDE_FILE.h> will be included and compiled, otherwise it will be <trace/events/TRACE_SYSTEM.h> So TRACE_SYSTEM should be defined outside of #if proctection, just like TRACE_INCLUDE_FILE. Imaging this scenario: #include <trace/events/foo.h> -> TRACE_SYSTEM == foo ... #include <trace/events/bar.h> -> TRACE_SYSTEM == bar ... #define CREATE_TRACE_POINTS #include <trace/events/foo.h> -> TRACE_SYSTEM == bar !!! and then bar.h will be included and compiled. Signed-off-by: Li Zefan <lizf@cn.fujitsu.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Frederic Weisbecker <fweisbec@gmail.com> LKML-Reference: <4A5A9CF1.2010007@cn.fujitsu.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-07-12NET: Fix locking issues in PPP, 6pack, mkiss and strip line disciplines.Ralf Baechle
Guido Trentalancia reports: I am trying to use the kiss driver in the Linux kernel that is being shipped with Fedora 10 but unfortunately I get the following oops: mkiss: AX.25 Multikiss, Hans Albas PE1AYX mkiss: ax0: crc mode is auto. ADDRCONF(NETDEV_CHANGE): ax0: link becomes ready ------------[ cut here ]------------ WARNING: at kernel/softirq.c:77 __local_bh_disable+0x2f/0x83() (Not tainted) [...] unloaded: microcode] Pid: 0, comm: swapper Not tainted 2.6.27.25-170.2.72.fc10.i686 #1 [<c042ddfb>] warn_on_slowpath+0x65/0x8b [<c06ab62b>] ? _spin_unlock_irqrestore+0x22/0x38 [<c04228b4>] ? __enqueue_entity+0xe3/0xeb [<c042431e>] ? enqueue_entity+0x203/0x20b [<c0424361>] ? enqueue_task_fair+0x3b/0x3f [<c041f88c>] ? resched_task+0x3a/0x6e [<c06ab62b>] ? _spin_unlock_irqrestore+0x22/0x38 [<c06ab4e2>] ? _spin_lock_bh+0xb/0x16 [<c043255b>] __local_bh_disable+0x2f/0x83 [<c04325ba>] local_bh_disable+0xb/0xd [<c06ab4e2>] _spin_lock_bh+0xb/0x16 [<f8b6f600>] mkiss_receive_buf+0x2fb/0x3a6 [mkiss] [<c0572a30>] flush_to_ldisc+0xf7/0x198 [<c0572b12>] tty_flip_buffer_push+0x41/0x51 [<f89477f2>] ftdi_process_read+0x375/0x4ad [ftdi_sio] [<f8947a5a>] ftdi_read_bulk_callback+0x130/0x138 [ftdi_sio] [<c05d4bec>] usb_hcd_giveback_urb+0x63/0x93 [<c05ea290>] uhci_giveback_urb+0xe5/0x15f [<c05eaabf>] uhci_scan_schedule+0x52e/0x767 [<c05f6288>] ? psmouse_handle_byte+0xc/0xe5 [<c054df78>] ? acpi_ev_gpe_detect+0xd6/0xe1 [<c05ec5b0>] uhci_irq+0x110/0x125 [<c05d4834>] usb_hcd_irq+0x40/0xa3 [<c0465313>] handle_IRQ_event+0x2f/0x64 [<c046642b>] handle_level_irq+0x74/0xbe [<c04663b7>] ? handle_level_irq+0x0/0xbe [<c0406e6e>] do_IRQ+0xc7/0xfe [<c0405668>] common_interrupt+0x28/0x30 [<c056821a>] ? acpi_idle_enter_simple+0x162/0x19d [<c0617f52>] cpuidle_idle_call+0x60/0x92 [<c0403c61>] cpu_idle+0x101/0x134 [<c069b1ba>] rest_init+0x4e/0x50 ======================= ---[ end trace b7cc8076093467ad ]--- ------------[ cut here ]------------ WARNING: at kernel/softirq.c:136 _local_bh_enable_ip+0x3d/0xc4() [...] Pid: 0, comm: swapper Tainted: G W 2.6.27.25-170.2.72.fc10.i686 [<c042ddfb>] warn_on_slowpath+0x65/0x8b [<c06ab62b>] ? _spin_unlock_irqrestore+0x22/0x38 [<c04228b4>] ? __enqueue_entity+0xe3/0xeb [<c042431e>] ? enqueue_entity+0x203/0x20b [<c0424361>] ? enqueue_task_fair+0x3b/0x3f [<c041f88c>] ? resched_task+0x3a/0x6e [<c06ab62b>] ? _spin_unlock_irqrestore+0x22/0x38 [<c06ab4e2>] ? _spin_lock_bh+0xb/0x16 [<f8b6f642>] ? mkiss_receive_buf+0x33d/0x3a6 [mkiss] [<c04325f9>] _local_bh_enable_ip+0x3d/0xc4 [<c0432688>] local_bh_enable_ip+0x8/0xa [<c06ab54d>] _spin_unlock_bh+0x11/0x13 [<f8b6f642>] mkiss_receive_buf+0x33d/0x3a6 [mkiss] [<c0572a30>] flush_to_ldisc+0xf7/0x198 [<c0572b12>] tty_flip_buffer_push+0x41/0x51 [<f89477f2>] ftdi_process_read+0x375/0x4ad [ftdi_sio] [<f8947a5a>] ftdi_read_bulk_callback+0x130/0x138 [ftdi_sio] [<c05d4bec>] usb_hcd_giveback_urb+0x63/0x93 [<c05ea290>] uhci_giveback_urb+0xe5/0x15f [<c05eaabf>] uhci_scan_schedule+0x52e/0x767 [<c05f6288>] ? psmouse_handle_byte+0xc/0xe5 [<c054df78>] ? acpi_ev_gpe_detect+0xd6/0xe1 [<c05ec5b0>] uhci_irq+0x110/0x125 [<c05d4834>] usb_hcd_irq+0x40/0xa3 [<c0465313>] handle_IRQ_event+0x2f/0x64 [<c046642b>] handle_level_irq+0x74/0xbe [<c04663b7>] ? handle_level_irq+0x0/0xbe [<c0406e6e>] do_IRQ+0xc7/0xfe [<c0405668>] common_interrupt+0x28/0x30 [<c056821a>] ? acpi_idle_enter_simple+0x162/0x19d [<c0617f52>] cpuidle_idle_call+0x60/0x92 [<c0403c61>] cpu_idle+0x101/0x134 [<c069b1ba>] rest_init+0x4e/0x50 ======================= ---[ end trace b7cc8076093467ad ]--- mkiss: ax0: Trying crc-smack mkiss: ax0: Trying crc-flexnet The issue was, that the locking code in mkiss was assuming it was only ever being called in process or bh context. Fixed by converting the involved locking code to use irq-safe locks. Review of other networking line disciplines shows that 6pack, both sync and async PPP and STRIP have similar issues. The ppp_async one is the most interesting one as it sorts out half of the issue as far back as 2004 in commit http://git.kernel.org/?p=linux/kernel/git/tglx/history.git;a=commitdiff;h=2996d8deaeddd01820691a872550dc0cfba0c37d Signed-off-by: Ralf Baechle <ralf@linux-mips.org> Reported-by: Guido Trentalancia <guido@trentalancia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-07-12USB: otg: fix module reinsert issueAjay Kumar Gupta
Platform_device instance (pd) is not set to NULL in usb_nop_xceiv_unregister() causing usb_nop_xceiv_register() to fail during module reinsert. From: Ajay Kumar Gupta <ajay.gupta@ti.com> Signed-off-by: Babu Ravi <ravibabu@ti.com> Acked-by: David Brownell <dbrownell@users.sourceforge.net>
2009-07-12USB: handle zero-length usbfs submissions correctlyAlan Stern
This patch (as1262) fixes a bug in usbfs: It refuses to accept zero-length transfers, and it insists that the buffer pointer be valid even if there is no data being transferred. The patch also consolidates a bunch of repetitive access_ok() checks into a single check, which incidentally fixes the lack of such a check for Isochronous URBs. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Cc: stable <stable@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-07-12USB: EHCI: report actual_length for iso transfersAlan Stern
This patch (as1259b) makes ehci-hcd return the total number of bytes transferred in urb->actual_length for Isochronous transfers. Until now, the actual_length value was unaccountably left at 0. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Acked-by: David Brownell <dbrownell@users.sourceforge.net> Cc: stable <stable@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-07-12USB: option: remove unnecessary and erroneous codeAlan Stern
This patch (as1264) removes a bunch of unnecessary and erroneous stuff from the option USB-serial driver. Clearly there's no need to verify that the device pointer stored in the URBs is right or to store the same pointer over again. After all, the pointer can't change once it has been set up. There's also no need to call usb_clear_halt for the IN endpoint multiple times -- in fact, doing so is an error since every time after the first there will be active URBs queued for that endpoint. Since the Clear-Halts don't appear to be needed at all, the patch simply removes them. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-07-12USB: cypress_m8: remove invalid Clear-HaltAlan Stern
This patch (as1265) removes an erroneous call to usb_clear_halt from the cypress_m8 driver. The call isn't valid because it is made from interrupt context whereas usb_clear_halt is a blocking routine. Presumably the code has never been executed; if it did it would cause an oops. So instead treat -EPIPE like any other sort of unexplained error. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-07-12USB: musb_host: undo incorrect change in musb_advance_schedule()Sergei Shtylyov
Commit c9cd06b3d6ea825c62e277def929cc4315802b48 (musb_host: refactor URB giveback) included due to my overlook the change incorrect in the context of the current kernel -- undo it. Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Acked-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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