net/smc: fix error return code in smc_setsockopt()

Fix to return error code -EINVAL instead of 0 if optlen is invalid.

Fixes: 01d2f7e2cdd3 ("net/smc: sockopts TCP_NODELAY and TCP_CORK")
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/smc/af_smc.c b/net/smc/af_smc.c
index 2c369d4bb1c1fb280a3059bfdb032b4041fa5e02..973b4471b532b0e64525e94bb2cb181a88b17bbc 100644 (file)
--- a/net/smc/af_smc.c
+++ b/net/smc/af_smc.c
@@ -1420,7 +1420,7 @@ static int smc_setsockopt(struct socket *sock, int level, int optname,
                return rc;
 
        if (optlen < sizeof(int))
-               return rc;
+               return -EINVAL;
        get_user(val, (int __user *)optval);
 
        lock_sock(sk);