diff options
| author | Dan Carpenter <dan.carpenter@oracle.com> | 2018-03-27 16:07:52 +0300 |
|---|---|---|
| committer | Ben Hutchings <ben@decadent.org.uk> | 2018-06-16 22:22:49 +0100 |
| commit | 07604df02cc58419e1a7b94282fa283760ddd9d2 (patch) | |
| tree | 1ff343891f3e851cdb0d250d1a8cf77cdf679881 | |
| parent | 6d05470a0ef1cebb630c64ce073a20a741616ded (diff) | |
| download | linux-rt-07604df02cc58419e1a7b94282fa283760ddd9d2.tar.gz | |
ALSA: pcm: potential uninitialized return values
commit 5607dddbfca774fb38bffadcb077fe03aa4ac5c6 upstream.
Smatch complains that "tmp" can be uninitialized if we do a zero size
write.
Fixes: 02a5d6925cd3 ("ALSA: pcm: Avoid potential races between OSS ioctls and read/write")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
| -rw-r--r-- | sound/core/oss/pcm_oss.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/sound/core/oss/pcm_oss.c b/sound/core/oss/pcm_oss.c index 96612762d623..c64b13761aca 100644 --- a/sound/core/oss/pcm_oss.c +++ b/sound/core/oss/pcm_oss.c @@ -1362,7 +1362,7 @@ static ssize_t snd_pcm_oss_write2(struct snd_pcm_substream *substream, const cha static ssize_t snd_pcm_oss_write1(struct snd_pcm_substream *substream, const char __user *buf, size_t bytes) { size_t xfer = 0; - ssize_t tmp; + ssize_t tmp = 0; struct snd_pcm_runtime *runtime = substream->runtime; if (atomic_read(&substream->mmap_count)) @@ -1469,7 +1469,7 @@ static ssize_t snd_pcm_oss_read2(struct snd_pcm_substream *substream, char *buf, static ssize_t snd_pcm_oss_read1(struct snd_pcm_substream *substream, char __user *buf, size_t bytes) { size_t xfer = 0; - ssize_t tmp; + ssize_t tmp = 0; struct snd_pcm_runtime *runtime = substream->runtime; if (atomic_read(&substream->mmap_count)) |