[ALSA] gus: Use SEEK_{SET,CUR,END} instead of hardcoded values

gus: Use SEEK_{SET,CUR,END} instead of hardcoded values

Signed-off-by: Josef 'Jeff' Sipek <jeffpc@josefsipek.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>
diff --git a/sound/isa/gus/gus_mem_proc.c b/sound/isa/gus/gus_mem_proc.c
index 4080255..80f0a83 100644
--- a/sound/isa/gus/gus_mem_proc.c
+++ b/sound/isa/gus/gus_mem_proc.c
@@ -61,13 +61,13 @@
 	struct gus_proc_private *priv = entry->private_data;
 
 	switch (orig) {
-	case 0:	/* SEEK_SET */
+	case SEEK_SET:
 		file->f_pos = offset;
 		break;
-	case 1:	/* SEEK_CUR */
+	case SEEK_CUR:
 		file->f_pos += offset;
 		break;
-	case 2: /* SEEK_END, offset is negative */
+	case SEEK_END: /* offset is negative */
 		file->f_pos = priv->size + offset;
 		break;
 	default: