diff --git a/drivers/input/evdev.c b/drivers/input/evdev.c
index 20e3a16..3a8314b 100644
--- a/drivers/input/evdev.c
+++ b/drivers/input/evdev.c
@@ -320,7 +320,7 @@
 			if (t < 0 || t >= dev->keycodemax || !dev->keycodesize) return -EINVAL;
 			if (get_user(v, ip + 1)) return -EFAULT;
 			if (v < 0 || v > KEY_MAX) return -EINVAL;
-			if (v >> (dev->keycodesize * 8)) return -EINVAL;
+			if (dev->keycodesize < sizeof(v) && (v >> (dev->keycodesize * 8))) return -EINVAL;
 			u = SET_INPUT_KEYCODE(dev, t, v);
 			clear_bit(u, dev->keybit);
 			set_bit(v, dev->keybit);