From c20be9b482978de39a489dfc2e2a4ccb8ee9ea56 Mon Sep 17 00:00:00 2001
From: Russell King <rmk+kernel@arm.linux.org.uk>
Date: Sun, 29 Nov 2009 16:39:52 +0000
Subject: [PATCH] ALSA: AACI: fix AC97 multiple-open bug

commit 4acd57c3de62374fe5bb52e5cd24538190f4eab2 upstream.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---
 sound/arm/aaci.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/sound/arm/aaci.c b/sound/arm/aaci.c
index dc78272fc39f..d3f1912aa2a1 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));
-- 
2.39.5