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-rw-r--r--sound/hda/hdac_bus.c1
-rw-r--r--sound/hda/hdac_controller.c3
2 files changed, 4 insertions, 0 deletions
diff --git a/sound/hda/hdac_bus.c b/sound/hda/hdac_bus.c
index 8f19876244eb..48b227fff204 100644
--- a/sound/hda/hdac_bus.c
+++ b/sound/hda/hdac_bus.c
@@ -43,6 +43,7 @@ int snd_hdac_bus_init(struct hdac_bus *bus, struct device *dev,
mutex_init(&bus->cmd_mutex);
mutex_init(&bus->lock);
INIT_LIST_HEAD(&bus->hlink_list);
+ init_waitqueue_head(&bus->rirb_wq);
bus->irq = -1;
return 0;
}
diff --git a/sound/hda/hdac_controller.c b/sound/hda/hdac_controller.c
index 7e7be8e4dcf9..cd1c3b282657 100644
--- a/sound/hda/hdac_controller.c
+++ b/sound/hda/hdac_controller.c
@@ -216,6 +216,9 @@ void snd_hdac_bus_update_rirb(struct hdac_bus *bus)
else if (bus->rirb.cmds[addr]) {
bus->rirb.res[addr] = res;
bus->rirb.cmds[addr]--;
+ if (!bus->rirb.cmds[addr] &&
+ waitqueue_active(&bus->rirb_wq))
+ wake_up(&bus->rirb_wq);
} else {
dev_err_ratelimited(bus->dev,
"spurious response %#x:%#x, last cmd=%#08x\n",