[ALSA] sound/pcmcia/vx/vxpocket.c: fix an if() condition

It seems noone ever tried to use this driver with more than one device.
Signed-off-by: NAdrian Bunk <bunk@stusta.de>
Signed-off-by: NTakashi Iwai <tiwai@suse.de>
Signed-off-by: NJaroslav Kysela <perex@suse.cz>

sound/pcmcia/vx/vxpocket.c

@@ -297,7 +297,7 @@ static int vxpocket_probe(struct pcmcia_device *p_dev)
 
 	/* find an empty slot from the card list */
 	for (i = 0; i < SNDRV_CARDS; i++) {
-		if (! card_alloc & (1 << i))
+		if (!(card_alloc & (1 << i)))
 			break;
 	}
 	if (i >= SNDRV_CARDS) {