tree 4e8b68dbeec41bd449750b60c25bb66486c17c96
parent 8b645e4a40dd490b9426670fffe9bb9e2878c3fd
author Takashi Iwai <tiwai@suse.de> 1507714920 +0200
committer Takashi Iwai <tiwai@suse.de> 1508306746 +0200

ALSA: pcm: Forcibly stop at disconnect callback

So far we assumed that each driver implements the hotplug PCM handling
properly, e.g. dealing with the pending PCM stream at disconnect
callback.  But most codes don't care, and it eventually leaves the PCM
stream inconsistent state when an abrupt disconnection like sysfs
unbind happens.

This patch is simple but a big-hammer solution: invoke snd_pcm_stop()
at the common PCM disconnect callback always when the stream is
running.

Tested-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>