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ALSA: pcm: potential uninitialized return values
commit5607dddbfc
upstream. Smatch complains that "tmp" can be uninitialized if we do a zero size write. Fixes:02a5d6925c
("ALSA: pcm: Avoid potential races between OSS ioctls and read/write") Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Cc: <stable@vger.kernel.org> Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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1 changed files with 2 additions and 2 deletions
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@ -1326,7 +1326,7 @@ static ssize_t snd_pcm_oss_write2(struct snd_pcm_substream *substream, const cha
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static ssize_t snd_pcm_oss_write1(struct snd_pcm_substream *substream, const char __user *buf, size_t bytes)
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{
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size_t xfer = 0;
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ssize_t tmp;
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ssize_t tmp = 0;
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struct snd_pcm_runtime *runtime = substream->runtime;
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if (atomic_read(&substream->mmap_count))
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@ -1433,7 +1433,7 @@ static ssize_t snd_pcm_oss_read2(struct snd_pcm_substream *substream, char *buf,
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static ssize_t snd_pcm_oss_read1(struct snd_pcm_substream *substream, char __user *buf, size_t bytes)
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{
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size_t xfer = 0;
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ssize_t tmp;
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ssize_t tmp = 0;
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struct snd_pcm_runtime *runtime = substream->runtime;
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if (atomic_read(&substream->mmap_count))
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