ALSA: au88x0 - Avoid possible Oops at unbinding
authorTakashi Iwai <tiwai@suse.de>
Fri, 16 Mar 2012 08:54:00 +0000 (09:54 +0100)
committerTakashi Iwai <tiwai@suse.de>
Fri, 16 Mar 2012 08:54:00 +0000 (09:54 +0100)
The irq handler must check whether the MPU401 instance is still alive.

Signed-off-by: Takashi Iwai <tiwai@suse.de>

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