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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: Trond Myklebust <Trond.Myklebust@netapp.com>
This commit is contained in:
Trond Myklebust 2009-03-11 14:06:41 -04:00
parent d7371c41b0
commit fba91afbec
1 changed files with 9 additions and 1 deletions
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10
net/sunrpc/xprtsock.c
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@ -467,7 +467,7 @@ static int xs_sendpages(struct socket *sock, struct sockaddr *addr, int addrlen,
int err, sent = 0; int err, sent = 0;
if (unlikely(!sock)) if (unlikely(!sock))
return -ENOTCONN; return -ENOTSOCK;
clear_bit(SOCK_ASYNC_NOSPACE, &sock->flags); clear_bit(SOCK_ASYNC_NOSPACE, &sock->flags);
if (base != 0) { if (base != 0) {
@ -594,6 +594,10 @@ static int xs_udp_send_request(struct rpc_task *task)
} }
switch (status) { switch (status) {
case -ENOTSOCK:
status = -ENOTCONN;
/* Should we call xs_close() here? */
break;
case -EAGAIN: case -EAGAIN:
xs_nospace(task); xs_nospace(task);
break; break;
@ -693,6 +697,10 @@ static int xs_tcp_send_request(struct rpc_task *task)
} }
switch (status) { switch (status) {
case -ENOTSOCK:
status = -ENOTCONN;
/* Should we call xs_close() here? */
break;
case -EAGAIN: case -EAGAIN:
xs_nospace(task); xs_nospace(task);
break; break;