diff --git a/net/core/sock.c b/net/core/sock.c
index d9eec153d5313df7c903365aef3341166ea1f340..bbb25be7ddfe614432ca8627ba4cbe791f57d569 100644
--- a/net/core/sock.c
+++ b/net/core/sock.c
@@ -631,7 +631,7 @@ int sock_setsockopt(struct socket *sock, int level, int optname,
 
 	case SO_TIMESTAMPING:
 		if (val & ~SOF_TIMESTAMPING_MASK) {
-			ret = EINVAL;
+			ret = -EINVAL;
 			break;
 		}
 		sock_valbool_flag(sk, SOCK_TIMESTAMPING_TX_HARDWARE,