ALSA: isa/*: Add missing KERN_* prefix to printk

Signed-off-by: Takashi Iwai <tiwai@suse.de>
diff --git a/sound/isa/ad1816a/ad1816a_lib.c b/sound/isa/ad1816a/ad1816a_lib.c
index 1c9e01e..05aef8b 100644
--- a/sound/isa/ad1816a/ad1816a_lib.c
+++ b/sound/isa/ad1816a/ad1816a_lib.c
@@ -37,7 +37,7 @@
 		if (inb(AD1816A_REG(AD1816A_CHIP_STATUS)) & AD1816A_READY)
 			return 0;
 
-	snd_printk("chip busy.\n");
+	snd_printk(KERN_WARNING "chip busy.\n");
 	return -EBUSY;
 }
 
@@ -196,7 +196,7 @@
 		spin_unlock(&chip->lock);
 		break;
 	default:
-		snd_printk("invalid trigger mode 0x%x.\n", what);
+		snd_printk(KERN_WARNING "invalid trigger mode 0x%x.\n", what);
 		error = -EINVAL;
 	}
 
@@ -565,7 +565,7 @@
 	case AD1816A_HW_AD1815:	return "AD1815";
 	case AD1816A_HW_AD18MAX10: return "AD18max10";
 	default:
-		snd_printk("Unknown chip version %d:%d.\n",
+		snd_printk(KERN_WARNING "Unknown chip version %d:%d.\n",
 			chip->version, chip->hardware);
 		return "AD1816A - unknown";
 	}