ALSA: pcm: Cleanup snd_pcm_stream_lock() & co

After the previous code refactoring, the PCM stream locking code
became nothing but the PCM group lock with self_group object.  Use the
existing helper function for simplifying the code.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Iwai 2019-01-13 10:15:03 +01:00
commit ef2056b8f3