drm: Fix printk typo 'failled'

Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
diff --git a/drivers/gpu/drm/radeon/rv770.c b/drivers/gpu/drm/radeon/rv770.c
index 2211a32..866cf2f 100644
--- a/drivers/gpu/drm/radeon/rv770.c
+++ b/drivers/gpu/drm/radeon/rv770.c
@@ -1206,7 +1206,7 @@
 
 	r = r600_ib_test(rdev);
 	if (r) {
-		DRM_ERROR("radeon: failled testing IB (%d).\n", r);
+		DRM_ERROR("radeon: failed testing IB (%d).\n", r);
 		return r;
 	}