[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/isa/gus/gus_dma.c b/sound/isa/gus/gus_dma.c
index de4b56d..ef1b2e9 100644
--- a/sound/isa/gus/gus_dma.c
+++ b/sound/isa/gus/gus_dma.c
@@ -199,7 +199,7 @@
 
 	block = kmalloc(sizeof(*block), atomic ? GFP_ATOMIC : GFP_KERNEL);
 	if (block == NULL) {
-		snd_printk("gf1: DMA transfer failure; not enough memory\n");
+		snd_printk(KERN_ERR "gf1: DMA transfer failure; not enough memory\n");
 		return -ENOMEM;
 	}
 	*block = *__block;