[ALSA] Don't NULL check vfree argument in pdaudiocf_pcm.c

Modules: PDAudioCF driver

Don't check pointers passed to vfree for null in pdaudiocf_pcm.c

Signed-off-by: Jesper Juhl <Jesper.Juhl@Gmail.Com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
diff --git a/sound/pcmcia/pdaudiocf/pdaudiocf_pcm.c b/sound/pcmcia/pdaudiocf/pdaudiocf_pcm.c
index 962e6d52..7f2a4de 100644
--- a/sound/pcmcia/pdaudiocf/pdaudiocf_pcm.c
+++ b/sound/pcmcia/pdaudiocf/pdaudiocf_pcm.c
@@ -66,10 +66,9 @@
 static int snd_pcm_free_vmalloc_buffer(struct snd_pcm_substream *subs)
 {
 	struct snd_pcm_runtime *runtime = subs->runtime;
-	if (runtime->dma_area) {
-		vfree(runtime->dma_area);
-		runtime->dma_area = NULL;
-	}
+
+	vfree(runtime->dma_area);
+	runtime->dma_area = NULL;
 	return 0;
 }