diff --git a/net/sunrpc/svcsock.c b/net/sunrpc/svcsock.c
index f6e1eb1ea7201dc3796b0058701af81627f7761d..593f62ff8521e1f502f7af6ea68cccd39a7b68fa 100644
--- a/net/sunrpc/svcsock.c
+++ b/net/sunrpc/svcsock.c
@@ -779,8 +779,8 @@ svc_udp_recvfrom(struct svc_rqst *rqstp)
 	}
 
 	clear_bit(SK_DATA, &svsk->sk_flags);
-	while ((err == kernel_recvmsg(svsk->sk_sock, &msg, NULL,
-				      0, 0, MSG_PEEK | MSG_DONTWAIT)) < 0 ||
+	while ((err = kernel_recvmsg(svsk->sk_sock, &msg, NULL,
+				     0, 0, MSG_PEEK | MSG_DONTWAIT)) < 0 ||
 	       (skb = skb_recv_datagram(svsk->sk_sk, 0, 1, &err)) == NULL) {
 		if (err == -EAGAIN) {
 			svc_sock_received(svsk);