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  1. 20 7月, 2015 2 次提交
  3. 19 7月, 2015 1 次提交
  5. 18 7月, 2015 1 次提交
  7. 17 7月, 2015 1 次提交
    • T
      ALSA: pcm: Fix lockdep warning with nonatomic PCM ops · 67756e31
      由 Takashi Iwai 提交于 
      With the nonatomic PCM ops, the system may spew lockdep warnings like:

 =============================================
 [ INFO: possible recursive locking detected ]
 4.2.0-rc1-jeejaval3 #12 Not tainted
 ---------------------------------------------
 aplay/4029 is trying to acquire lock:
  (snd_pcm_link_rwsem){.+.+.+}, at: [<ffffffff816fd473>] snd_pcm_stream_lock+0x43/0x60

 but task is already holding lock:
  (snd_pcm_link_rwsem){.+.+.+}, at: [<ffffffff816fcf29>] snd_pcm_action_nonatomic+0x29/0x80

 other info that might help us debug this:
  Possible unsafe locking scenario:

        CPU0
        ----
   lock(snd_pcm_link_rwsem);
   lock(snd_pcm_link_rwsem);

Although this is false-positive as the rwsem is taken always as
read-only for these code paths, it's certainly annoying to see this at
any occasion.  A simple fix is to use down_read_nested() in
snd_pcm_stream_lock() that can be called inside another lock.
Reported-by: NVinod Koul <vinod.koul@intel.com>
Reported-by: NJeeja Kp <jeeja.kp@intel.com>
Tested-by: NJeeja Kp <jeeja.kp@intel.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: NTakashi Iwai <tiwai@suse.de>
      67756e31
  9. 16 7月, 2015 1 次提交
  11. 14 7月, 2015 1 次提交
  13. 08 7月, 2015 1 次提交
  15. 06 7月, 2015 1 次提交
  17. 01 7月, 2015 1 次提交
  19. 30 6月, 2015 1 次提交
    • C
      ALSA: Fix uninintialized error return · 0755e74b
      由 Colin Ian King 提交于 
      Static analysis with cppcheck found the following error:
  [sound/core/init.c:118]: (error) Uninitialized variable: err

..this was introduced by commit 2471b6c8
("ALSA: info: Register proc entries recursively, too") where the call
to snd_info_card_register was removed and no longer setting the error
return in err.  When snd_info_create_card_entry fails to allocate a
an entry, the error path exits with garbage in err.  Fix is to return
-ENOMEM if entry fails to be allocated.

Fixes: 2471b6c8 ("ALSA: info: Register proc entries recursively, too")
Signed-off-by: NColin Ian King <colin.king@canonical.com>
Signed-off-by: NTakashi Iwai <tiwai@suse.de>
      0755e74b
  21. 29 6月, 2015 3 次提交
  23. 27 6月, 2015 1 次提交
  25. 26 6月, 2015 2 次提交
  27. 25 6月, 2015 3 次提交
  29. 23 6月, 2015 1 次提交
    • T
      ALSA: pcm: Fix pcm_class sysfs output · 60b93030
      由 Takashi Iwai 提交于 
      The pcm_class sysfs of each PCM substream gives only "none" since the
recent code change to embed the struct device.  Fix the code to point
directly to the embedded device object properly.

Fixes: ef46c7af ('ALSA: pcm: Embed struct device')
Cc: <stable@vger.kernel.org> # v4.0+
Signed-off-by: NTakashi Iwai <tiwai@suse.de>
      60b93030
  31. 22 6月, 2015 19 次提交