Patchwork [30/75] staging: line6: Fix unlocked snd_pcm_stop() call

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Submitter Kamal Mostafa
Date July 30, 2013, 3:16 p.m.
Message ID <1375197464-27962-31-git-send-email-kamal@canonical.com>
Download mbox | patch
Permalink /patch/263426/
State New
Headers show

Comments

Kamal Mostafa - July 30, 2013, 3:16 p.m.
3.8.13.6 -stable review patch.  If anyone has any objections, please let me know.

------------------

From: Takashi Iwai <tiwai@suse.de>

commit 86f0b5b86d142b9323432fef078a6cf0fb5dda74 upstream.

snd_pcm_stop() must be called in the PCM substream lock context.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
---
 drivers/staging/line6/pcm.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

Patch

diff --git a/drivers/staging/line6/pcm.c b/drivers/staging/line6/pcm.c
index 6c1e313..fe6f536e 100644
--- a/drivers/staging/line6/pcm.c
+++ b/drivers/staging/line6/pcm.c
@@ -384,8 +384,11 @@  static int snd_line6_pcm_free(struct snd_device *device)
 */
 static void pcm_disconnect_substream(struct snd_pcm_substream *substream)
 {
-	if (substream->runtime && snd_pcm_running(substream))
+	if (substream->runtime && snd_pcm_running(substream)) {
+		snd_pcm_stream_lock_irq(substream);
 		snd_pcm_stop(substream, SNDRV_PCM_STATE_DISCONNECTED);
+		snd_pcm_stream_unlock_irq(substream);
+	}
 }
 
 /*