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authorTrond Myklebust <Trond.Myklebust@netapp.com>2009-03-11 19:06:41 +0100
committerTrond Myklebust <Trond.Myklebust@netapp.com>2009-03-11 19:06:41 +0100
commitfba91afbec2c004e2c8733ae9e0ca6998e962c64 (patch)
tree025d7c07b8d41d4e5752fb9da7396a0b596856da /net/sunrpc/xprtsock.c
parentBug 11061, NFS mounts dropped (diff)
downloadlinux-fba91afbec2c004e2c8733ae9e0ca6998e962c64.tar.xz
linux-fba91afbec2c004e2c8733ae9e0ca6998e962c64.zip
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>
Diffstat (limited to '')
-rw-r--r--net/sunrpc/xprtsock.c10
1 files changed, 9 insertions, 1 deletions
diff --git a/net/sunrpc/xprtsock.c b/net/sunrpc/xprtsock.c
index 5cbb404c4cdf..a71fefd61910 100644
--- a/net/sunrpc/xprtsock.c
+++ b/net/sunrpc/xprtsock.c
@@ -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;