diff --git a/net/unix/diag.c b/net/unix/diag.c
index c512f64d528766f940b30236bf3e3c8fa2047661..4d9679701a6df5113df3e24a1c9b86e2a63b3710 100644
--- a/net/unix/diag.c
+++ b/net/unix/diag.c
@@ -220,7 +220,7 @@ static int unix_diag_dump(struct sk_buff *skb, struct netlink_callback *cb)
 	return skb->len;
 }
 
-static struct sock *unix_lookup_by_ino(int ino)
+static struct sock *unix_lookup_by_ino(unsigned int ino)
 {
 	int i;
 	struct sock *sk;