ALSA: hda: Comment about snd_hdac_bus_update_rirb() and spinlock
authorTakashi Iwai <tiwai@suse.de>
Fri, 13 Dec 2019 16:30:05 +0000 (17:30 +0100)
committerTakashi Iwai <tiwai@suse.de>
Sat, 14 Dec 2019 17:56:06 +0000 (18:56 +0100)
commit651bbb9d5161ae7170bc19fec893b8bf05fc590f
tree5ecda3ce5f33ec56d809099e36b56a1320a72d02
parent1faa9d3a3ea7852761ff403f5a9d4a409c0bb199
ALSA: hda: Comment about snd_hdac_bus_update_rirb() and spinlock

The call of snd_hdac_bus_update_rirb() needs the bus->reg_lock
spinlock protection for concurrency.  Comment about it more
explicitly.

Link: https://lore.kernel.org/r/20191213163005.19116-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
sound/hda/hdac_controller.c