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net/smc: unlock on error paths in __smc_setsockopt() 

These two error paths need to release_sock(sk) before returning.

Fixes: a6a6fe27ba ("net/smc: Dynamic control handshake limitation by socket options")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: D. Wythe <alibuda@linux.alibaba.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Dan Carpenter 2022-02-18 18:32:59 +03:00 committed by David S. Miller
parent a7f4f13a0a
commit 7a11455f37
1 changed files with 8 additions and 4 deletions
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12
net/smc/af_smc.c
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@ -2715,10 +2715,14 @@ static int __smc_setsockopt(struct socket *sock, int level, int optname,
lock_sock(sk); lock_sock(sk);
switch (optname) { switch (optname) {
case SMC_LIMIT_HS: case SMC_LIMIT_HS:
if (optlen < sizeof(int)) if (optlen < sizeof(int)) {
return -EINVAL; rc = -EINVAL;
if (copy_from_sockptr(&val, optval, sizeof(int))) break;
return -EFAULT; }
if (copy_from_sockptr(&val, optval, sizeof(int))) {
rc = -EFAULT;
break;
}
smc->limit_smc_hs = !!val; smc->limit_smc_hs = !!val;
rc = 0; rc = 0;