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ALSA: PCM: Fix some races at disconnection
authorTakashi Iwai <tiwai@suse.de>
Fri, 12 Oct 2012 13:07:34 +0000 (15:07 +0200)
committerBen Hutchings <ben@decadent.org.uk>
Fri, 16 Nov 2012 16:46:48 +0000 (16:46 +0000)
commit 9b0573c07f278e9888c352aa9724035c75784ea0 upstream.

Fix races at PCM disconnection:
- while a PCM device is being opened or closed
- while the PCM state is being changed without lock in prepare,
  hw_params, hw_free ops

Reported-by: Matthieu CASTET <matthieu.castet@parrot.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>

No differences found
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