ALSA: AACI: fix AC97 multiple-open bug

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Cc: <stable@kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

1 files changed, 4 insertions, 0 deletions

diff --git a/sound/arm/aaci.c b/sound/arm/aaci.c
index 1f0f8213e2d5..1cb7c282a1fb 100644
--- a/sound/arm/aaci.c
+++ b/sound/arm/aaci.c
@@ -504,6 +504,10 @@ static int aaci_pcm_hw_params(struct snd_pcm_substream *substream,
         int err;
 
         aaci_pcm_hw_free(substream);
+        if (aacirun->pcm_open) {
+                snd_ac97_pcm_close(aacirun->pcm);
+                aacirun->pcm_open = 0;
+        }
 
         err = devdma_hw_alloc(NULL, substream,
                               params_buffer_bytes(params));