[ALSA] Add missing KERN_* suffix to printk

Add missing KERN_* suffix to printk.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
diff --git a/sound/pci/emu10k1/irq.c b/sound/pci/emu10k1/irq.c
index cd8460d..594ea06 100644
--- a/sound/pci/emu10k1/irq.c
+++ b/sound/pci/emu10k1/irq.c
@@ -41,7 +41,7 @@
 		orig_status = status;
 		handled = 1;
 		if (status & IPR_PCIERROR) {
-			snd_printk("interrupt: PCI error\n");
+			snd_printk(KERN_ERR "interrupt: PCI error\n");
 			snd_emu10k1_intr_disable(emu, INTE_PCIERRORENABLE);
 			status &= ~IPR_PCIERROR;
 		}