ALSA: Don't leak in sound/core/oss/pcm_oss.c::snd_pcm_hw_param_near()

snd_pcm_hw_param_near() will leak the memory allocated to 'save' if the
call to snd_pcm_hw_param_max() returns less than zero.
This patch makes sure we never leak.

Signed-off-by: Jesper Juhl <jj@chaosbits.net>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

1 files changed, 3 insertions, 1 deletions

diff --git a/sound/core/oss/pcm_oss.c b/sound/core/oss/pcm_oss.c
index b753ec661fcf..a2e4eb324699 100644
--- a/sound/core/oss/pcm_oss.c
+++ b/sound/core/oss/pcm_oss.c
@@ -453,8 +453,10 @@ static int snd_pcm_hw_param_near(struct snd_pcm_substream *pcm,
         } else {
                 *params = *save;
                 max = snd_pcm_hw_param_max(pcm, params, var, max, &maxdir);
-                if (max < 0)
+                if (max < 0) {
+                        kfree(save);
                         return max;
+                }
                 last = 1;
         }
  _end: