[ALSA] vx - Fix memory leak on error path

Modules: Digigram VX core

Noticed by Eric Sesterhenn on kernel-janitors@

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

sound/drivers/vx/vx_pcm.c

@@ -1253,9 +1253,13 @@ static int vx_init_audio_io(struct vx_core *chip)
 
 	/* allocate pipes */
 	chip->playback_pipes = kmalloc(sizeof(struct vx_pipe *) * chip->audio_outs, GFP_KERNEL);
+	if (!chip->playback_pipes)
+		return -ENOMEM;
 	chip->capture_pipes = kmalloc(sizeof(struct vx_pipe *) * chip->audio_ins, GFP_KERNEL);
-	if (! chip->playback_pipes || ! chip->capture_pipes)
+	if (!chip->capture_pipes) {
+		kfree(chip->playback_pipes);
 		return -ENOMEM;
+	}
 
 	memset(chip->playback_pipes, 0, sizeof(struct vx_pipe *) * chip->audio_outs);
 	memset(chip->capture_pipes, 0, sizeof(struct vx_pipe *) * chip->audio_ins);