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sock: unlock on error in sock_setsockopt()

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If copy_from_sockptr() then we need to unlock before returning.

Fixes: d463126e23 ("net: sock: extend SO_TIMESTAMPING for PHC binding")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Dan Carpenter 2021-07-07 13:01:00 +03:00 • committed by David S. Miller
parent d7fba8ff3e
commit 271dbc3184
1 changed files with 4 additions and 2 deletions
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6
net/core/sock.c
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@ -1123,8 +1123,10 @@ set_sndbuf:
case SO_TIMESTAMPING_OLD: case SO_TIMESTAMPING_OLD:
if (optlen == sizeof(timestamping)) { if (optlen == sizeof(timestamping)) {
if (copy_from_sockptr(&timestamping, optval, if (copy_from_sockptr(&timestamping, optval,
sizeof(timestamping))) sizeof(timestamping))) {
return -EFAULT; ret = -EFAULT;
break;
}
} else { } else {
memset(&timestamping, 0, sizeof(timestamping)); memset(&timestamping, 0, sizeof(timestamping));
timestamping.flags = val; timestamping.flags = val;