diff options
| author | Christoph Hellwig <hch@lst.de> | 2020-07-17 09:23:12 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2020-07-20 04:16:40 +0300 |
| commit | d8a9b38f83ea91341f80beb0a07a5777c6acf7a4 (patch) | |
| tree | d87ea54c4c39b42663ad781f975b179dc7abbd14 /net/socket.c | |
| parent | 4a3672993f95c5f2ff0cf0951ba9a712d941a248 (diff) | |
| download | linux-d8a9b38f83ea91341f80beb0a07a5777c6acf7a4.tar.xz | |
net: streamline __sys_getsockopt
Return early when sockfd_lookup_light fails to reduce a level of
indentation for most of the function body.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/socket.c')
| -rw-r--r-- | net/socket.c | 31 |
1 files changed, 14 insertions, 17 deletions
diff --git a/net/socket.c b/net/socket.c index 49a6daf0293b..b79376b17b45 100644 --- a/net/socket.c +++ b/net/socket.c @@ -2163,28 +2163,25 @@ static int __sys_getsockopt(int fd, int level, int optname, int max_optlen; sock = sockfd_lookup_light(fd, &err, &fput_needed); - if (sock != NULL) { - err = security_socket_getsockopt(sock, level, optname); - if (err) - goto out_put; + if (!sock) + return err; - max_optlen = BPF_CGROUP_GETSOCKOPT_MAX_OPTLEN(optlen); + err = security_socket_getsockopt(sock, level, optname); + if (err) + goto out_put; - if (level == SOL_SOCKET) - err = - sock_getsockopt(sock, level, optname, optval, + max_optlen = BPF_CGROUP_GETSOCKOPT_MAX_OPTLEN(optlen); + + if (level == SOL_SOCKET) + err = sock_getsockopt(sock, level, optname, optval, optlen); + else + err = sock->ops->getsockopt(sock, level, optname, optval, optlen); - else - err = - sock->ops->getsockopt(sock, level, optname, optval, - optlen); - err = BPF_CGROUP_RUN_PROG_GETSOCKOPT(sock->sk, level, optname, - optval, optlen, - max_optlen, err); + err = BPF_CGROUP_RUN_PROG_GETSOCKOPT(sock->sk, level, optname, optval, + optlen, max_optlen, err); out_put: - fput_light(sock->file, fput_needed); - } + fput_light(sock->file, fput_needed); return err; } |