[PATCH net-next] net/smc: fix error return code in smc_setsockopt()

[Wei Yongjun]

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 <weiyongj...@huawei.com>
---
 net/smc/af_smc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/smc/af_smc.c b/net/smc/af_smc.c
index 2c369d4..973b447 100644
--- 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);