From: Bard Liao <yung-chuan.liao@xxxxxxxxxxxxxxx>
The patch is to fix commit 5e13cf6cd64c
(ALSA: hda: add polling mode in snd_hdac_bus_get_response)
spin_lock_irq should be called before snd_hdac_bus_update_rirb.
Signed-off-by: Bard Liao <yung-chuan.liao@xxxxxxxxxxxxxxx>
---
Takashi,
Sorry, I make a mistake on the "ALSA: hda: add polling mode in
snd_hdac_bus_get_response" patch. This patch is a fix for that.
Thanks,
Bard
---
sound/hda/hdac_controller.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/sound/hda/hdac_controller.c b/sound/hda/hdac_controller.c
index a16ac31bda83..d6a91429c058 100644
--- a/sound/hda/hdac_controller.c
+++ b/sound/hda/hdac_controller.c
@@ -239,9 +239,9 @@ int snd_hdac_bus_get_response(struct hdac_bus *bus, unsigned int addr,
timeout = jiffies + msecs_to_jiffies(1000);
for (loopcounter = 0;; loopcounter++) {
+ spin_lock_irq(&bus->reg_lock);
if (bus->polling_mode)
snd_hdac_bus_update_rirb(bus);
- spin_lock_irq(&bus->reg_lock);
if (!bus->rirb.cmds[addr]) {
if (res)
*res = bus->rirb.res[addr]; /* the last value */
--
2.17.1
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