ALSA: Add missing KERN_* prefix to printk in sound/drivers

Signed-off-by: Takashi Iwai <tiwai@suse.de>
diff --git a/sound/drivers/mtpav.c b/sound/drivers/mtpav.c
index 5b89c088..6b26305 100644
--- a/sound/drivers/mtpav.c
+++ b/sound/drivers/mtpav.c
@@ -303,8 +303,10 @@
 
 		snd_mtpav_send_byte(mtp_card, 0xf5);
 		snd_mtpav_send_byte(mtp_card, portp->hwport);
-		//snd_printk("new outport: 0x%x\n", (unsigned int) portp->hwport);
-
+		/*
+		snd_printk(KERN_DEBUG "new outport: 0x%x\n",
+			   (unsigned int) portp->hwport);
+		*/
 		if (!(outbyte & 0x80) && portp->running_status)
 			snd_mtpav_send_byte(mtp_card, portp->running_status);
 	}
@@ -540,7 +542,7 @@
 
 	u8 sbyt = snd_mtpav_getreg(mcrd, SREG);
 
-	//printk("snd_mtpav_read_bytes() sbyt: 0x%x\n", sbyt);
+	/* printk(KERN_DEBUG "snd_mtpav_read_bytes() sbyt: 0x%x\n", sbyt); */
 
 	if (!(sbyt & SIGS_BYTE))
 		return;
@@ -585,12 +587,12 @@
 static int __devinit snd_mtpav_get_ISA(struct mtpav * mcard)
 {
 	if ((mcard->res_port = request_region(port, 3, "MotuMTPAV MIDI")) == NULL) {
-		snd_printk("MTVAP port 0x%lx is busy\n", port);
+		snd_printk(KERN_ERR "MTVAP port 0x%lx is busy\n", port);
 		return -EBUSY;
 	}
 	mcard->port = port;
 	if (request_irq(irq, snd_mtpav_irqh, IRQF_DISABLED, "MOTU MTPAV", mcard)) {
-		snd_printk("MTVAP IRQ %d busy\n", irq);
+		snd_printk(KERN_ERR "MTVAP IRQ %d busy\n", irq);
 		return -EBUSY;
 	}
 	mcard->irq = irq;