net/smc: fix another sizeof to int comparison

Comparing an int to a size, which is unsigned, causes the int to become unsigned, giving the wrong result. kernel_sendmsg can return a negative error code. Signed-off-by: Ursula Braun <[email protected]> Signed-off-by: David S. Miller <[email protected]>
ambv · Feb 1, 2019 · 14d22d4 · 14d22d4
1 parent 7596175
commit 14d22d4
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/net/smc/smc_clc.c b/net/smc/smc_clc.c
@@ -378,7 +378,7 @@ int smc_clc_send_decline(struct smc_sock *smc, u32 peer_diag_info)
 	vec.iov_len = sizeof(struct smc_clc_msg_decline);
 	len = kernel_sendmsg(smc->clcsock, &msg, &vec, 1,
 			     sizeof(struct smc_clc_msg_decline));
-	if (len < sizeof(struct smc_clc_msg_decline))
+	if (len < 0 || len < sizeof(struct smc_clc_msg_decline))
 		len = -EPROTO;
 	return len > 0 ? 0 : len;
 }