Commit 651bbb9d authored Dec 13, 2019 by Takashi Iwai

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>

parent 1faa9d3a

sound/hda/hdac_controller.c

+1 −0

Original line number	Diff line number	Diff line
		@@ -181,6 +181,7 @@ EXPORT_SYMBOL_GPL(snd_hdac_bus_send_cmd);
		* @bus: HD-audio core bus
		*
		* Usually called from interrupt handler.
		* The caller needs bus->reg_lock spinlock before calling this.
		*/
		void snd_hdac_bus_update_rirb(struct hdac_bus *bus)
		{

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