From: Jia Zhou <zhou.jia2@xxxxxxxxxx>
modification in commit 2a3f7221acdd ("ALSA: core: Fix card races between
register and disconnect") resulting in this problem.
Signed-off-by: Jia Zhou <zhou.jia2@xxxxxxxxxx>
Signed-off-by: Yi Wang <wang.yi59@xxxxxxxxxx>
---
sound/core/init.c | 2 --
1 file changed, 2 deletions(-)
diff --git a/sound/core/init.c b/sound/core/init.c
index 018ce4ef1..9f5270c90 100644
--- a/sound/core/init.c
+++ b/sound/core/init.c
@@ -390,10 +390,8 @@ int snd_card_disconnect(struct snd_card *card)
return 0;
}
card->shutdown = 1;
- spin_unlock(&card->files_lock);
/* replace file->f_op with special dummy operations */
- spin_lock(&card->files_lock);
list_for_each_entry(mfile, &card->files_list, list) {
/* it's critical part, use endless loop */
/* we have no room to fail */
--
2.18.4
