diff --git a/drivers/input/misc/uinput.c b/drivers/input/misc/uinput.c
index e707da0b1fe2..8c9644e04ff3 100644
--- a/drivers/input/misc/uinput.c
+++ b/drivers/input/misc/uinput.c
@@ -740,6 +740,7 @@ static int uinput_ff_upload_to_user(char __user *buffer,
 	if (in_compat_syscall()) {
 		struct uinput_ff_upload_compat ff_up_compat;
 
+		memset(&ff_up_compat, 0, sizeof(ff_up_compat));
 		ff_up_compat.request_id = ff_up->request_id;
 		ff_up_compat.retval = ff_up->retval;
 		/*