ALSA: firewire: fix error return code in scs_probe()

Fix to return -ENOMEM in the kmalloc() error handling
case instead of 0, as done elsewhere in this function.
Signed-off-by: NWei Yongjun <yongjun_wei@trendmicro.com.cn>
Acked-by: NClemens Ladisch <clemens@ladisch.de>
Signed-off-by: NTakashi Iwai <tiwai@suse.de>

sound/firewire/scs1x.c

@@ -405,8 +405,10 @@ static int scs_probe(struct device *unit_dev)
 	scs->output_idle = true;
 
 	scs->buffer = kmalloc(HSS1394_MAX_PACKET_SIZE, GFP_KERNEL);
-	if (!scs->buffer)
+	if (!scs->buffer) {
+		err = -ENOMEM;
 		goto err_card;
+	}
 
 	scs->hss_handler.length = HSS1394_MAX_PACKET_SIZE;
 	scs->hss_handler.address_callback = handle_hss;