The call of snd_hdac_bus_update_rirb() needs the bus->reg_lock
spinlock protection for concurrency. Comment about it more
explicitly.
Signed-off-by: Takashi Iwai <tiwai@xxxxxxx>
---
sound/hda/hdac_controller.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/sound/hda/hdac_controller.c b/sound/hda/hdac_controller.c
index 01787081552d..b856184af37f 100644
--- a/sound/hda/hdac_controller.c
+++ b/sound/hda/hdac_controller.c
@@ -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)
{
--
2.16.4
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