diff options
| author | Christoph Hellwig <hch@lst.de> | 2020-07-17 08:23:31 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2020-07-19 18:16:41 -0700 |
| commit | a44d9e72100f7044ac46e4e6dc475f5b4097830f (patch) | |
| tree | 1bf043e2d02b8e00b1d54952b3e3799b1be79efa /net/socket.c | |
| parent | 3021ad529950d07e0408d65d0f1df00454c1d223 (diff) | |
| download | linux-a44d9e72100f7044ac46e4e6dc475f5b4097830f.tar.gz | |
net: make ->{get,set}sockopt in proto_ops optional
Just check for a NULL method instead of wiring up
sock_no_{get,set}sockopt.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/socket.c')
| -rw-r--r-- | net/socket.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/net/socket.c b/net/socket.c index dec345982abb..93846568c2fb 100644 --- a/net/socket.c +++ b/net/socket.c @@ -2131,6 +2131,8 @@ int __sys_setsockopt(int fd, int level, int optname, char __user *optval, if (level == SOL_SOCKET && !sock_use_custom_sol_socket(sock)) err = sock_setsockopt(sock, level, optname, optval, optlen); + else if (unlikely(!sock->ops->setsockopt)) + err = -EOPNOTSUPP; else err = sock->ops->setsockopt(sock, level, optname, optval, optlen); @@ -2175,6 +2177,8 @@ int __sys_getsockopt(int fd, int level, int optname, char __user *optval, if (level == SOL_SOCKET) err = sock_getsockopt(sock, level, optname, optval, optlen); + else if (unlikely(!sock->ops->getsockopt)) + err = -EOPNOTSUPP; else err = sock->ops->getsockopt(sock, level, optname, optval, optlen); |