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OSS: soundcard: locking bug in sound_ioctl()

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We shouldn't return directly here because we're still holding the
&soundcard_mutex.

This bug goes all the way back to the start of git.  It's strange that
no one has complained about it as a runtime bug.

CC: [email protected]
Signed-off-by: Dan Carpenter <[email protected]>
Acked-by: Arnd Bergmann <[email protected]>
Signed-off-by: Takashi Iwai <[email protected]>
This commit is contained in:
Dan Carpenter 2010-10-10 19:33:52 +02:00 • committed by Takashi Iwai
commit d4cfa4d12f
1 changed files with 2 additions and 2 deletions
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4
sound/oss/soundcard.c
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@ -391,11 +391,11 @@ static long sound_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
case SND_DEV_DSP:
case SND_DEV_DSP16:
case SND_DEV_AUDIO:
return audio_ioctl(dev, file, cmd, p);
ret = audio_ioctl(dev, file, cmd, p);
break;
case SND_DEV_MIDIN:
return MIDIbuf_ioctl(dev, file, cmd, p);
ret = MIDIbuf_ioctl(dev, file, cmd, p);
break;
}