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[ALSA] usbusx2yaudio: kfree(NULL) is valid

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if (!x) kfree(x); is not needed since kfree(NULL) is valid.

Signed-off-by: Richard Knutsson <ricknu-0@student.ltu.se>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>
This commit is contained in:
Richard Knutsson 2007-05-14 10:38:57 +02:00 committed by Jaroslav Kysela
parent 500bec3d2b
commit c111b8de97
1 changed files with 3 additions and 4 deletions
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7
sound/usb/usx2y/usbusx2yaudio.c
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@ -935,10 +935,9 @@ static struct snd_pcm_ops snd_usX2Y_pcm_ops =
*/
static void usX2Y_audio_stream_free(struct snd_usX2Y_substream **usX2Y_substream)
{
if (NULL != usX2Y_substream[SNDRV_PCM_STREAM_PLAYBACK]) {
kfree(usX2Y_substream[SNDRV_PCM_STREAM_PLAYBACK]);
usX2Y_substream[SNDRV_PCM_STREAM_PLAYBACK] = NULL;
}
kfree(usX2Y_substream[SNDRV_PCM_STREAM_PLAYBACK]);
usX2Y_substream[SNDRV_PCM_STREAM_PLAYBACK] = NULL;
kfree(usX2Y_substream[SNDRV_PCM_STREAM_CAPTURE]);
usX2Y_substream[SNDRV_PCM_STREAM_CAPTURE] = NULL;
}