This is a note to let you know that I've just added the patch titled
ASoC: pcm: free path list before exiting from error conditions
to the 3.13-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
asoc-pcm-free-path-list-before-exiting-from-error-conditions.patch
and it can be found in the queue-3.13 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From e4ad1accb28d0ed8cea6f12395d58686ad344ca7 Mon Sep 17 00:00:00 2001
From: Patrick Lai <plai@xxxxxxxxxxxxxx>
Date: Sun, 2 Mar 2014 11:52:57 -0800
Subject: ASoC: pcm: free path list before exiting from error conditions
From: Patrick Lai <plai@xxxxxxxxxxxxxx>
commit e4ad1accb28d0ed8cea6f12395d58686ad344ca7 upstream.
dpcm_path_get() allocates dynamic memory to hold path list.
Corresponding dpcm_path_put() must be called to free the memory.
dpcm_path_put() is not called under several error conditions.
This leads to memory leak.
Signed-off-by: Patrick Lai <plai@xxxxxxxxxxxxxx>
Signed-off-by: Mark Brown <broonie@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
sound/soc/soc-pcm.c | 3 +++
1 file changed, 3 insertions(+)
--- a/sound/soc/soc-pcm.c
+++ b/sound/soc/soc-pcm.c
@@ -1886,6 +1886,7 @@ int soc_dpcm_runtime_update(struct snd_s
paths = dpcm_path_get(fe, SNDRV_PCM_STREAM_PLAYBACK, &list);
if (paths < 0) {
+ dpcm_path_put(&list);
dev_warn(fe->dev, "ASoC: %s no valid %s path\n",
fe->dai_link->name, "playback");
mutex_unlock(&card->mutex);
@@ -1915,6 +1916,7 @@ capture:
paths = dpcm_path_get(fe, SNDRV_PCM_STREAM_CAPTURE, &list);
if (paths < 0) {
+ dpcm_path_put(&list);
dev_warn(fe->dev, "ASoC: %s no valid %s path\n",
fe->dai_link->name, "capture");
mutex_unlock(&card->mutex);
@@ -1979,6 +1981,7 @@ static int dpcm_fe_dai_open(struct snd_p
fe->dpcm[stream].runtime = fe_substream->runtime;
if (dpcm_path_get(fe, stream, &list) <= 0) {
+ dpcm_path_put(&list);
dev_dbg(fe->dev, "ASoC: %s no valid %s route\n",
fe->dai_link->name, stream ? "capture" : "playback");
}
Patches currently in stable-queue which might be from plai@xxxxxxxxxxxxxx are
queue-3.13/asoc-pcm-free-path-list-before-exiting-from-error-conditions.patch
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