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Commit fba91afb authored by Trond Myklebust's avatar Trond Myklebust
Browse files

SUNRPC: Fix an Oops due to socket not set up yet... 



We can Oops in both xs_udp_send_request() and xs_tcp_send_request() if the
call to xs_sendpages() returns an error due to the socket not yet being
set up.
Deal with that situation by returning a new error: ENOTSOCK, so that we
know to avoid dereferencing transport->sock.

Signed-off-by: default avatarTrond Myklebust <Trond.Myklebust@netapp.com>
parent d7371c41

net/sunrpc/xprtsock.c

+9 −1
Original line number Diff line number Diff line
@@ -467,7 +467,7 @@ static int xs_sendpages(struct socket *sock, struct sockaddr *addr, int addrlen, 
	int err, sent = 0;



	if (unlikely(!sock))

		return -ENOTCONN;

		return -ENOTSOCK;



	clear_bit(SOCK_ASYNC_NOSPACE, &sock->flags);

	if (base != 0) {
@@ -594,6 +594,10 @@ static int xs_udp_send_request(struct rpc_task *task) 
	}



	switch (status) {

	case -ENOTSOCK:

		status = -ENOTCONN;

		/* Should we call xs_close() here? */

		break;

	case -EAGAIN:

		xs_nospace(task);

		break;
@@ -693,6 +697,10 @@ static int xs_tcp_send_request(struct rpc_task *task) 
	}



	switch (status) {

	case -ENOTSOCK:

		status = -ENOTCONN;

		/* Should we call xs_close() here? */

		break;

	case -EAGAIN:

		xs_nospace(task);

		break;