Takashi Iwai de7e30da24 ALSA: pcm: Don't call sync_stop if it hasn't been stopped
commit 700cb70730777c159a988e01daa93f20a1ae9b58 upstream.

The PCM stop operation sets the stop_operating flag for indicating the
sync_stop post-process.  This flag is, however, set unconditionally
even if the PCM trigger weren't issued.  This may lead to
inconsistency in the driver side.

Correct the code to set stop_operating flag only after the trigger
STOP is actually called.

Fixes: 1e850beea278 ("ALSA: pcm: Add the support for sync-stop operation")
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20210206203656.15959-4-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-03-04 11:37:19 +01:00
..
2020-08-21 10:07:54 -07:00
2020-07-09 13:01:29 +02:00
2021-02-07 15:37:15 +01:00