drm: remove unnecessary sizeof(u8)

sizeof(u8) is always 1.

Signed-off-by: Fabian Frederick <[e-mail]>
Signed-off-by: Dave Airlie <[e-mail]>

drivers/gpu/drm/r128/r128_state.c

···
 	if (IS_ERR(buffer))
 		return PTR_ERR(buffer);
 
-	mask_size = depth->n * sizeof(u8);
+	mask_size = depth->n;
 	if (depth->mask) {
 		mask = memdup_user(depth->mask, mask_size);
 		if (IS_ERR(mask)) {
···
 	}
 
 	if (depth->mask) {
-		mask_size = depth->n * sizeof(u8);
+		mask_size = depth->n;
 		mask = memdup_user(depth->mask, mask_size);
 		if (IS_ERR(mask)) {
 			kfree(x);