Граф коммитов

362045 Коммитов

Автор SHA1 Сообщение Дата
Konrad Rzeszutek Wilk 949dd8c14f xen/acpi-processor: Don't dereference struct acpi_processor on all CPUs.
With git commit c705c78c0d
"acpi: Export the acpi_processor_get_performance_info" we are now
using a different mechanism to access the P-states.

The acpi_processor per-cpu structure is set and filtered by the
core ACPI code which shrinks the per_cpu contents to only online CPUs.
In the past we would call acpi_processor_register_performance()
which would have not tried to dereference offline cpus.

With the new patch and the fact that the loop we take is for
for_all_possible_cpus we end up crashing on some machines.
We could modify the loop to be for online_cpus - but all the other
loops in the code use possible_cpus (for a good reason) - so lets
leave it as so and just check if per_cpu(processor) is NULL.

With this patch we will bypass the !online but possible CPUs.
This fixes:

IP: [<ffffffffa00d13b5>] xen_acpi_processor_init+0x1b6/0xe01 [xen_acpi_processor]
PGD 4126e6067 PUD 4126e3067 PMD 0
Oops: 0002 [#1] SMP
Pid: 432, comm: modprobe Not tainted 3.9.0-rc3+ #28 To be filled by O.E.M. To be filled by O.E.M./M5A97
RIP: e030:[<ffffffffa00d13b5>]  [<ffffffffa00d13b5>] xen_acpi_processor_init+0x1b6/0xe01 [xen_acpi_processor]
RSP: e02b:ffff88040c8a3ce8  EFLAGS: 00010282
.. snip..
Call Trace:
 [<ffffffffa00d11ff>] ? read_acpi_id+0x12b/0x12b [xen_acpi_processor]
 [<ffffffff8100215a>] do_one_initcall+0x12a/0x180
 [<ffffffff810c42c3>] load_module+0x1cd3/0x2870
 [<ffffffff81319b70>] ? ddebug_proc_open+0xc0/0xc0
 [<ffffffff810c4f37>] sys_init_module+0xd7/0x120
 [<ffffffff8166ce19>] system_call_fastpath+0x16/0x1b

on some machines.

Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
2013-03-22 08:23:11 -04:00
Marcelo Tosatti 09a6e1f4ad Revert "KVM: allow host header to be included even for !CONFIG_KVM"
This reverts commit f445f11eb2 as
it breaks PPC with CONFIG_KVM=n.

Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2013-03-22 08:08:06 -03:00
Ludovic Desroches 888f2804e4 MAINTAINERS: add maintainer entry for atmel i2c driver
Create an entry for atmel i2c driver: i2c-at91.c

Signed-off-by: Ludovic Desroches <ludovic.desroches@atmel.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2013-03-22 11:19:59 +01:00
Guenter Roeck b104153e36 i2c: Fix my e-mail address in drivers and documentation
My old e-mail address is no longer working.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2013-03-22 11:18:34 +01:00
Seth Heasley 488b926923 i2c: iSMT: add Intel Avoton DeviceIDs
This patch adds the iSMT SMBus Controller DeviceIDs for the Intel Avoton SOC.

Signed-off-by: Seth Heasley <seth.heasley@intel.com>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2013-03-22 11:16:15 +01:00
Laxman Dewangan 132c803f7b i2c: tegra: check the clk_prepare_enable() return value
NVIDIA's Tegra SoC allows read/write of controller register only
if controller clock is enabled. System hangs if read/write happens
to registers without enabling clock.

clk_prepare_enable() can be fail due to unknown reason and hence
adding check for return value of this function. If this function
success then only access register otherwise return to caller with
error.

Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Reviewed-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Cc: stable@kernel.org
2013-03-22 10:28:55 +01:00
Archit Taneja ff588d83bf omapdss: features: fix supported outputs for OMAP4
The support outputs struct for overlay managers is incorrect for OMAP4. Make
these changes:

- DPI isn't supported via the LCD1 overlay manager, remove DPI as a supported
  output.
- the TV manager can suppport DPI, but the omapdss driver doesn't support that
  yet, we require some muxing at the DSS level, and we also need to configure
  the hdmi pll in the DPI driver so that the TV manager has a pixel clock. We
  don't support that yet.

Signed-off-by: Archit Taneja <archit@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2013-03-22 10:14:32 +02:00
Grazvydas Ignotas a2f9b2a560 OMAPDSS: tpo-td043 panel: fix data passing between SPI/DSS parts
This driver uses omap_dss_device that it gets from a board file through
SPI platfrom_data pointer to pass data from SPI to DSS portion of the
driver by using dev_set_drvdata(). However this trick no longer works,
as DSS core no longer uses omap_dss_device from a board file to create
the real device, so use a global pointer to accomplish this instead,
like other SPI panel drivers do.

Signed-off-by: Grazvydas Ignotas <notasas@gmail.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2013-03-22 10:14:32 +02:00
Aaro Koskinen d31c3a8189 omapfb: fix broken build on OMAP1
Fix the following build regression in 3.9-rc1 by including
<mach/hardware.h>:

drivers/video/omap/omapfb_main.c: In function 'set_fb_var':
drivers/video/omap/omapfb_main.c:505:3: error: implicit declaration of function 'cpu_is_omap15xx' [-Werror=implicit-function-declaration]

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2013-03-22 10:14:31 +02:00
Linus Torvalds 9217cbb8df Merge branch 'for-next' of git://git.samba.org/sfrench/cifs-2.6
Pull CIFS fixes from Steve French:
 "Three small CIFS Fixes (the most important of the three fixes a recent
  problem authenticating to Windows 8 using cifs rather than SMB2)"

* 'for-next' of git://git.samba.org/sfrench/cifs-2.6:
  cifs: ignore everything in SPNEGO blob after mechTypes
  cifs: delay super block destruction until all cifsFileInfo objects are gone
  cifs: map NT_STATUS_SHARING_VIOLATION to EBUSY instead of ETXTBSY
2013-03-21 17:59:22 -07:00
Linus Torvalds d3c926264a Fix a number of regression and other bugs in ext4, most of which were
relatively obscure cornercases or races that were found using
 regression tests.
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Merge tag 'ext4_for_linue' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4

Pull ext4 fixes from Ted Ts'o:
 "Fix a number of regression and other bugs in ext4, most of which were
  relatively obscure cornercases or races that were found using
  regression tests."

* tag 'ext4_for_linue' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4: (21 commits)
  ext4: fix data=journal fast mount/umount hang
  ext4: fix ext4_evict_inode() racing against workqueue processing code
  ext4: fix memory leakage in mext_check_coverage
  ext4: use s_extent_max_zeroout_kb value as number of kb
  ext4: use atomic64_t for the per-flexbg free_clusters count
  jbd2: fix use after free in jbd2_journal_dirty_metadata()
  ext4: reserve metadata block for every delayed write
  ext4: update reserved space after the 'correction'
  ext4: do not use yield()
  ext4: remove unused variable in ext4_free_blocks()
  ext4: fix WARN_ON from ext4_releasepage()
  ext4: fix the wrong number of the allocated blocks in ext4_split_extent()
  ext4: update extent status tree after an extent is zeroed out
  ext4: fix wrong m_len value after unwritten extent conversion
  ext4: add self-testing infrastructure to do a sanity check
  ext4: avoid a potential overflow in ext4_es_can_be_merged()
  ext4: invalidate extent status tree during extent migration
  ext4: remove unnecessary wait for extent conversion in ext4_fallocate()
  ext4: add warning to ext4_convert_unwritten_extents_endio
  ext4: disable merging of uninitialized extents
  ...
2013-03-21 17:56:10 -07:00
H. Peter Anvin 625f6ac9cf EFI changes for v3.9-rc3,
* A new config option and efivars module parameter have been added to
     allow the efivars pstore backend to be disabled as we're still seeing
     issues on machines despite adding heuristics to workaround known bugs.
     Distributions now have a way to disable EFI variable pstore code
     completely - from Seth Forshee.
 
   * A couple of efivars patches to workaround quirky implementations
     of GetNextVariableName() which resulted in machines hanging and
     sysfs files being created with garbage names.
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Merge tag 'efi-for-3.9-rc3' into x86/urgent

EFI changes for v3.9-rc3,

  * A new config option and efivars module parameter have been added to
    allow the efivars pstore backend to be disabled as we're still seeing
    issues on machines despite adding heuristics to workaround known bugs.
    Distributions now have a way to disable EFI variable pstore code
    completely - from Seth Forshee.

  * A couple of efivars patches to workaround quirky implementations
    of GetNextVariableName() which resulted in machines hanging and
    sysfs files being created with garbage names.

Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
2013-03-21 17:40:10 -07:00
H. Peter Anvin f564c24103 x86, microcode_intel_early: Mark apply_microcode_early() as cpuinit
Add missing __cpuinit annotation to apply_microcode_early().

Reported-by: Shaun Ruffell <sruffell@digium.com>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Link: http://lkml.kernel.org/r/20130320170310.GA23362@digium.com
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
2013-03-21 17:32:36 -07:00
Tsutomu Itoh 1dd05682b3 Btrfs: fix memory leak in btrfs_create_tree()
We should free leaf and root before returning from the error
handling code.

Signed-off-by: Tsutomu Itoh <t-itoh@jp.fujitsu.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
2013-03-21 19:31:52 -04:00
Jan Schmidt d9abbf1c31 Btrfs: fix locking on ROOT_REPLACE operations in tree mod log
To resolve backrefs, ROOT_REPLACE operations in the tree mod log are
required to be tied to at least one KEY_REMOVE_WHILE_FREEING operation.
Therefore, those operations must be enclosed by tree_mod_log_write_lock()
and tree_mod_log_write_unlock() calls.

Those calls are private to the tree_mod_log_* functions, which means that
removal of the elements of an old root node must be logged from
tree_mod_log_insert_root. This partly reverts and corrects commit ba1bfbd5
(Btrfs: fix a tree mod logging issue for root replacement operations).

This fixes the brand-new version of xfstest 276 as of commit cfe73f71.

Cc: stable@vger.kernel.org
Signed-off-by: Jan Schmidt <list.btrfs@jan-o-sch.net>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
2013-03-21 19:31:52 -04:00
Wang Shilong 6113077cd3 Btrfs: fix missing qgroup reservation before fallocating
Steps to reproduce:
	mkfs.btrfs <disk>
	mount <disk> <mnt>
	btrfs quota enable <mnt>
	btrfs sub create <mnt>/subv
	btrfs qgroup limit 10M <mnt>/subv
	fallocate --length 20M <mnt>/subv/data

For the above example, fallocating will return successfully which
is not expected, we try to fix it by doing qgroup reservation before
fallocating.

Signed-off-by: Wang Shilong <wangsl-fnst@cn.fujitsu.com>
Reviewed-by: Miao Xie <miaox@cn.fujitsu.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
2013-03-21 19:24:32 -04:00
Josef Bacik 835d974fab Btrfs: handle a bogus chunk tree nicely
If you restore a btrfs-image file system and try to mount that file system we'll
panic.  That's because btrfs-image restores and just makes one big chunk to
envelope the whole disk, since they are really only meant to be messed with by
our btrfs-progs.  So fix up btrfs_rmap_block and the callers of it for mount so
that we no longer panic but instead just return an error and fail to mount.
Thanks,

Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
2013-03-21 19:24:31 -04:00
Liu Bo d763448286 Btrfs: update to use fs_state bit
Now that we use bit operation to check fs_state, update
btrfs_free_fs_root()'s checker, otherwise we get back to
memory leak case.

Signed-off-by: Liu Bo <bo.li.liu@oracle.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
2013-03-21 19:24:31 -04:00
Johan Hovold fc98ab873a USB: ti_usb_3410_5052: fix use-after-free in TIOCMIWAIT
Use the port wait queue and make sure to check the serial disconnected
flag before accessing private port data after waking up.

This is is needed as the private port data (including the wait queue
itself) can be gone when waking up after a disconnect.

Cc: stable <stable@vger.kernel.org>
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-03-21 15:59:05 -07:00
Johan Hovold 43a66b4c41 USB: ssu100: fix use-after-free in TIOCMIWAIT
Use the port wait queue and make sure to check the serial disconnected
flag before accessing private port data after waking up.

This is is needed as the private port data (including the wait queue
itself) can be gone when waking up after a disconnect.

Cc: stable <stable@vger.kernel.org>
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-03-21 15:59:05 -07:00
Johan Hovold dbcea7615d USB: spcp8x5: fix use-after-free in TIOCMIWAIT
Use the port wait queue and make sure to check the serial disconnected
flag before accessing private port data after waking up.

This is is needed as the private port data (including the wait queue
itself) can be gone when waking up after a disconnect.

Cc: stable <stable@vger.kernel.org>
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-03-21 15:59:05 -07:00
Johan Hovold 69f87f40d2 USB: quatech2: fix use-after-free in TIOCMIWAIT
Use the port wait queue and make sure to check the serial disconnected
flag before accessing private port data after waking up.

This is is needed as the private port data (including the wait queue
itself) can be gone when waking up after a disconnect.

Cc: stable <stable@vger.kernel.org>
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-03-21 15:59:05 -07:00
Johan Hovold 40509ca982 USB: pl2303: fix use-after-free in TIOCMIWAIT
Use the port wait queue and make sure to check the serial disconnected
flag before accessing private port data after waking up.

This is is needed as the private port data (including the wait queue
itself) can be gone when waking up after a disconnect.

Cc: stable <stable@vger.kernel.org>
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-03-21 15:59:05 -07:00
Johan Hovold 8edfdab371 USB: oti6858: fix use-after-free in TIOCMIWAIT
Use the port wait queue and make sure to check the serial disconnected
flag before accessing private port data after waking up.

This is is needed as the private port data (including the wait queue
itself) can be gone when waking up after a disconnect.

Cc: stable <stable@vger.kernel.org>
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-03-21 15:59:04 -07:00
Johan Hovold a14430db68 USB: mos7840: fix use-after-free in TIOCMIWAIT
Use the port wait queue and make sure to check the serial disconnected
flag before accessing private port data after waking up.

This is is needed as the private port data (including the wait queue
itself) can be gone when waking up after a disconnect.

Cc: stable <stable@vger.kernel.org>
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-03-21 15:59:04 -07:00
Johan Hovold e670c6af12 USB: mos7840: fix broken TIOCMIWAIT
Make sure waiting processes are woken on modem-status changes.

Currently processes are only woken on termios changes regardless of
whether the modem status has changed.

Cc: stable <stable@vger.kernel.org>
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-03-21 15:59:04 -07:00
Johan Hovold cf1d244436 USB: mct_u232: fix use-after-free in TIOCMIWAIT
Use the port wait queue and make sure to check the serial disconnected
flag before accessing private port data after waking up.

This is is needed as the private port data (including the wait queue
itself) can be gone when waking up after a disconnect.

Cc: stable <stable@vger.kernel.org>
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-03-21 15:59:04 -07:00
Johan Hovold 7b24596905 USB: io_ti: fix use-after-free in TIOCMIWAIT
Use the port wait queue and make sure to check the serial disconnected
flag before accessing private port data after waking up.

This is is needed as the private port data (including the wait queue
itself) can be gone when waking up after a disconnect.

Cc: stable <stable@vger.kernel.org>
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-03-21 15:59:04 -07:00
Johan Hovold 333576255d USB: io_edgeport: fix use-after-free in TIOCMIWAIT
Use the port wait queue and make sure to check the serial disconnected
flag before accessing private port data after waking up.

This is is needed as the private port data (including the wait queue
itself) can be gone when waking up after a disconnect.

Cc: stable <stable@vger.kernel.org>
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-03-21 15:59:03 -07:00
Johan Hovold 71ccb9b019 USB: ftdi_sio: fix use-after-free in TIOCMIWAIT
Use the port wait queue and make sure to check the serial disconnected
flag before accessing private port data after waking up.

This is is needed as the private port data (including the wait queue
itself) can be gone when waking up after a disconnect.

When switching to tty ports, some lifetime assumptions were changed.
Specifically, close can now be called before the final tty reference is
dropped as part of hangup at device disconnect. Even with the ftdi
private-data refcounting this means that the port private data can be
freed while a process is sleeping on modem-status changes and thus
cannot be relied on to detect disconnects when woken up.

Cc: stable <stable@vger.kernel.org>
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-03-21 15:59:03 -07:00
Johan Hovold 508f940f14 USB: f81232: fix use-after-free in TIOCMIWAIT
Use the port wait queue and make sure to check the serial disconnected
flag before accessing private port data after waking up.

This is is needed as the private port data (including the wait queue
itself) can be gone when waking up after a disconnect.

Cc: stable <stable@vger.kernel.org>
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-03-21 15:59:03 -07:00
Johan Hovold 356050d8b1 USB: cypress_m8: fix use-after-free in TIOCMIWAIT
Use the port wait queue and make sure to check the serial disconnected
flag before accessing private port data after waking up.

This is is needed as the private port data (including the wait queue
itself) can be gone when waking up after a disconnect.

Also remove bogus test for private data pointer being NULL as it is
never assigned in the loop.

Cc: stable <stable@vger.kernel.org>
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-03-21 15:59:03 -07:00
Johan Hovold fa1e11d523 USB: ch341: fix use-after-free in TIOCMIWAIT
Use the port wait queue and make sure to check the serial disconnected
flag before accessing private port data after waking up.

This is is needed as the private port data (including the wait queue
itself) can be gone when waking up after a disconnect.

Cc: stable <stable@vger.kernel.org>
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-03-21 15:59:03 -07:00
Johan Hovold 5018860321 USB: ark3116: fix use-after-free in TIOCMIWAIT
Use the port wait queue and make sure to check the serial disconnected
flag before accessing private port data after waking up.

This is is needed as the private port data (including the wait queue
itself) can be gone when waking up after a disconnect.

Cc: stable <stable@vger.kernel.org>
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-03-21 15:59:02 -07:00
Johan Hovold e5b33dc9d1 USB: serial: add modem-status-change wait queue
Add modem-status-change wait queue to struct usb_serial_port that
subdrivers can use to implement TIOCMIWAIT.

Currently subdrivers use a private wait queue which may have been
released when waking up after device disconnected.

Note that we're adding a new wait queue rather than reusing the tty-port
one as we do not want to get woken up at hangup (yet).

Cc: stable <stable@vger.kernel.org>
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-03-21 15:59:02 -07:00
Johan Hovold d7971051e4 USB: serial: fix interface refcounting
Make sure the interface is not released before our serial device.

Note that drivers are still not allowed to access the interface in
any way that may interfere with another driver that may have gotten
bound to the same interface after disconnect returns.

Cc: stable <stable@vger.kernel.org>
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-03-21 15:59:02 -07:00
Johan Hovold 5492bf3d56 USB: io_ti: fix get_icount for two port adapters
Add missing get_icount field to two-port driver.

The two-port driver was not updated when switching to the new icount
interface in commit 0bca1b913a ("tty: Convert the USB drivers to the
new icount interface").

Cc: stable <stable@vger.kernel.org>
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-03-21 15:59:02 -07:00
Johan Hovold 618aa1068d USB: garmin_gps: fix memory leak on disconnect
Remove bogus disconnect test introduced by 95bef012e ("USB: more serial
drivers writing after disconnect") which prevented queued data from
being freed on disconnect.

The possible IO it was supposed to prevent is long gone.

Cc: stable <stable@vger.kernel.org>
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-03-21 15:59:02 -07:00
Johan Hovold cb25505fc6 USB: cdc-acm: fix device unregistration
Unregister tty device in disconnect as is required by the USB stack.

By deferring unregistration to when the last tty reference is dropped,
the parent interface device can get unregistered before the child
resulting in broken hotplug events being generated when the tty is
finally closed:

KERNEL[2290.798128] remove   /devices/pci0000:00/0000:00:1d.7/usb2/2-1/2-1:3.1 (usb)
KERNEL[2290.804589] remove   /devices/pci0000:00/0000:00:1d.7/usb2/2-1 (usb)
KERNEL[2294.554799] remove   /2-1:3.1/tty/ttyACM0 (tty)

The driver must deal with tty callbacks after disconnect by checking the
disconnected flag. Specifically, further opens must be prevented and
this is already implemented.

Cc: stable <stable@vger.kernel.org>
Cc: Oliver Neukum <oneukum@suse.de>
Acked-by: Oliver Neukum <oneukum@suse.de>
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-03-21 15:59:01 -07:00
Alexey Khoroshilov c93d819550 usb: cdc-acm: fix error handling in acm_probe()
acm_probe() ignores errors in tty_port_register_device()
and leaves intfdata pointing to freed memory on alloc_fail7
error path. The patch fixes the both issues.

Found by Linux Driver Verification project (linuxtesting.org).

Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru>
Acked-by: Oliver Neukum <oliver@neukum.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-03-21 15:59:01 -07:00
Andrzej Hajda 6ba4d05e84 [media] m5mols: Fix bug in stream on handler
Due to improper condition check streaming start for some pixel
formats was prevent and the s_stream just reatuned -EINVAL.
This fixes regression introduced in commit 5565a2ad47
[media] m5mols: Protect driver data with a mutex.

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-03-21 18:25:09 -03:00
Sylwester Nawrocki 8c6ecdd7ce [media] s5p-fimc: Do not attempt to disable not enabled media pipeline
This fixes following warnings when all links are being disconnected:
[   20.080000] WARNING: at drivers/media/platform/s5p-fimc/fimc-mdevice.c:1269 __fimc_md_set_camclk+0x208/0x20c()
[   20.090000] Modules linked in:
[   20.095000] [<c001603c>] (unwind_backtrace+0x0/0x13c) from [<c00246dc>] (warn_slowpath_common+0x54/0x64)
[   20.105000] [<c00246dc>] (warn_slowpath_common+0x54/0x64) from [<c0024708>] (warn_slowpath_null+0x1c/0x24)
[   20.115000] [<c0024708>] (warn_slowpath_null+0x1c/0x24) from [<c0323fe8>] (__fimc_md_set_camclk+0x208/0x20c)
[   20.125000] [<c0323fe8>] (__fimc_md_set_camclk+0x208/0x20c) from [<c0324368>] (__fimc_pipeline_close+0x38/0x48)
[   20.135000] [<c0324368>] (__fimc_pipeline_close+0x38/0x48) from [<c0325848>] (fimc_md_link_notify+0x10c/0x198)
[   20.145000] [<c0325848>] (fimc_md_link_notify+0x10c/0x198) from [<c02f9dd4>] (__media_entity_setup_link+0x1c0/0x1e8)
[   20.155000] [<c02f9dd4>] (__media_entity_setup_link+0x1c0/0x1e8) from [<c02f9710>] (media_device_ioctl+0x2c0/0x41c)
[   20.165000] [<c02f9710>] (media_device_ioctl+0x2c0/0x41c) from [<c02f9938>] (media_ioctl+0x30/0x34)
[   20.175000] [<c02f9938>] (media_ioctl+0x30/0x34) from [<c00cf0bc>] (do_vfs_ioctl+0x84/0x5e8)
[   20.185000] [<c00cf0bc>] (do_vfs_ioctl+0x84/0x5e8) from [<c00cf65c>] (sys_ioctl+0x3c/0x60)
[   20.190000] [<c00cf65c>] (sys_ioctl+0x3c/0x60) from [<c000f040>] (ret_fast_syscall+0x0/0x30)

Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-03-21 18:24:57 -03:00
Arun Kumar K 053e09f319 [media] s5p-mfc: Fix encoder control 15 issue
mfc-encoder is not working in the latest kernel giving the
erorr "Adding control (15) failed". Adding the missing step
parameter in this control to fix the issue.

Signed-off-by: Arun Kumar K <arun.kk@samsung.com>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-03-21 18:24:38 -03:00
Arun Kumar K 90c0ae5009 [media] s5p-mfc: Fix frame skip bug
The issue was seen in VP8 decoding where the last frame was
skipped by the driver. This patch gets the correct frame_type value
to fix this bug.

Signed-off-by: Arun Kumar K <arun.kk@samsung.com>
Signed-off-by: Arun Mankuzhi <arun.m@samsung.com>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-03-21 18:24:07 -03:00
Shaik Ameer Basha e34a89b397 [media] s5p-fimc: send valid m2m ctx to fimc_m2m_job_finish
fimc_m2m_job_finish() has to be called with the m2m context for the necessary
cleanup while resume. But currently fimc_m2m_job_finish() always passes m2m
context as NULL.
This patch preserves the context before making it null, for necessary cleanup.

Signed-off-by: Shaik Ameer Basha <shaik.ameer@samsung.com>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-03-21 18:23:21 -03:00
Shaik Ameer Basha 5d83790be7 [media] exynos-gsc: send valid m2m ctx to gsc_m2m_job_finish
gsc_m2m_job_finish() has to be called with the m2m context for the necessary
cleanup while resume. But currently gsc_m2m_job_finish() always passes m2m
context as NULL.
This patch preserves the context before making it null, for necessary cleanup.
Use gsc_m2m_opened() instead gsc_m2m_active() in gsc_resume().

Signed-off-by: Shaik Ameer Basha <shaik.ameer@samsung.com>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-03-21 18:23:06 -03:00
Shaik Ameer Basha 6a5360966a [media] fimc-lite: Fix the variable type to avoid possible crash
Changing the variable type to 'int' from 'unsigned int'. Driver
logic expects the variable type to be 'int'.

Signed-off-by: Shaik Ameer Basha <shaik.ameer@samsung.com>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-03-21 18:22:43 -03:00
Shaik Ameer Basha 4cec1893d8 [media] fimc-lite: Initialize 'step' field in fimc_lite_ctrl structure
v4l2_ctrl_new() uses check_range() for control range checking.
This function expects 'step' value for V4L2_CTRL_TYPE_BOOLEAN type control.
If 'step' value doesn't match to '1', it returns -ERANGE error.
This patch adds the default .step value to 1.

Signed-off-by: Shaik Ameer Basha <shaik.ameer@samsung.com>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-03-21 18:22:08 -03:00
Richard Genoud 740924a267 pinmux: forbid mux_usecount to be set at UINT_MAX
If pin_free is called on a pin already freed, mux_usecount is set to
UINT_MAX which is really a bad idea.

This will issue a warning, so that we can correct the code responsible
for the double free.

Signed-off-by: Richard Genoud <richard.genoud@gmail.com>
Reviewed-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-03-21 19:26:18 +01:00
Simon Guinot 48a23fac5e pinctrl: mvebu: fix checking for SoC specific controls
This patch fixes a minor bug (probably due to a typo) while checking
the SoC specific controls in mvebu_pinctrl_probe().

Acked-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: Simon Guinot <simon.guinot@sequanux.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-03-21 18:50:54 +01:00