diff --git a/drivers/input/input-compat.c b/drivers/input/input-compat.c
index a5043193ead8..8860a0730294 100644
--- a/drivers/input/input-compat.c
+++ b/drivers/input/input-compat.c
@@ -76,6 +76,8 @@ int input_ff_effect_from_user(const char __user *buffer, size_t size,
 		 */
 		compat_effect = (struct ff_effect_compat *)effect;
 
+		memset(effect, 0, sizeof(*effect));
+
 		if (copy_from_user(compat_effect, buffer,
 				   sizeof(struct ff_effect_compat)))
 			return -EFAULT;