[PATCH 93/93] snd_pcm_link(): fix a leak...

From: Luis Henriques
Date: Tue Jun 18 2013 - 07:46:46 EST


3.5.7.15 -stable review patch. If anyone has any objections, please let me know.

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

From: Al Viro <viro@xxxxxxxxxxxxxxxxxx>

commit dd6c5cd8fedddc9605209098e2fa4e82c7af22aa upstream.

in case when snd_pcm_stream_linked(substream) is true, we end up leaking
group.

Signed-off-by: Al Viro <viro@xxxxxxxxxxxxxxxxxx>
Cc: Jonghwan Choi <jhbird.choi@xxxxxxxxxxx>
Signed-off-by: Luis Henriques <luis.henriques@xxxxxxxxxxxxx>
---
sound/core/pcm_native.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/sound/core/pcm_native.c b/sound/core/pcm_native.c
index 7203c9a..ffb9153 100644
--- a/sound/core/pcm_native.c
+++ b/sound/core/pcm_native.c
@@ -1633,6 +1633,7 @@ static int snd_pcm_link(struct snd_pcm_substream *substream, int fd)
}
if (!snd_pcm_stream_linked(substream)) {
substream->group = group;
+ group = NULL;
spin_lock_init(&substream->group->lock);
INIT_LIST_HEAD(&substream->group->substreams);
list_add_tail(&substream->link_list, &substream->group->substreams);
@@ -1647,8 +1648,7 @@ static int snd_pcm_link(struct snd_pcm_substream *substream, int fd)
_nolock:
snd_card_unref(substream1->pcm->card);
fput(file);
- if (res < 0)
- kfree(group);
+ kfree(group);
return res;
}

--
1.8.1.2

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