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| author | Jesper Juhl <jj@chaosbits.net> | 2012-01-24 00:02:57 +0400 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2012-01-24 18:29:32 +0400 |
| commit | 769fab2a41da4bd3c59eee38f47d6d5405738fe0 (patch) | |
| tree | 615fc66dc9e534bc2318d4120d3506f85dbeb1e8 /sound/core/compress_offload.c | |
| parent | 4d20bb1d5fe1afbdbff951c06cd3d3654fa5ceed (diff) | |
| download | linux-769fab2a41da4bd3c59eee38f47d6d5405738fe0.tar.xz | |
ALSA: Fix memory leak on error in snd_compr_set_params()
If copy_from_user() does not return 0 we'll leak the memory we
allocated for 'params' when that variable goes out of scope.
Also a small CodingStyle cleanup: Use braces on both branches of
if/else when one branch needs it.
Signed-off-by: Jesper Juhl <jj@chaosbits.net>
Acked-by: Vinod Koul <vinod.koul@linux.intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/core/compress_offload.c')
| -rw-r--r-- | sound/core/compress_offload.c | 13 |
1 files changed, 8 insertions, 5 deletions
diff --git a/sound/core/compress_offload.c b/sound/core/compress_offload.c index dac3633507c9..a68aed7fce02 100644 --- a/sound/core/compress_offload.c +++ b/sound/core/compress_offload.c @@ -441,19 +441,22 @@ snd_compr_set_params(struct snd_compr_stream *stream, unsigned long arg) params = kmalloc(sizeof(*params), GFP_KERNEL); if (!params) return -ENOMEM; - if (copy_from_user(params, (void __user *)arg, sizeof(*params))) - return -EFAULT; + if (copy_from_user(params, (void __user *)arg, sizeof(*params))) { + retval = -EFAULT; + goto out; + } retval = snd_compr_allocate_buffer(stream, params); if (retval) { - kfree(params); - return -ENOMEM; + retval = -ENOMEM; + goto out; } retval = stream->ops->set_params(stream, params); if (retval) goto out; stream->runtime->state = SNDRV_PCM_STATE_SETUP; - } else + } else { return -EPERM; + } out: kfree(params); return retval; |