Phonet: fix NULL dereference on TX path with implicit source
authorRémi Denis-Courmont <remi.denis-courmont@nokia.com>
Tue, 8 Mar 2011 22:44:06 +0000 (22:44 +0000)
committerDavid S. Miller <davem@davemloft.net>
Wed, 9 Mar 2011 19:59:29 +0000 (11:59 -0800)
commitc69d4407d8884e8a127f95d07b1896443f3716ff
tree85989f9259365d5470113e810237b567ba93af37
parent7b46ac4e77f3224a1befe032c77f1df31d1b42c4
Phonet: fix NULL dereference on TX path with implicit source

The previous Phonet patch series introduced per-socket implicit
destination (i.e. connect()). In that case, the destination
socket address is NULL in the transmit function.
However commit a8059512b120362b15424f152b2548fe8b11bd0c
("Phonet: implement per-socket destination/peer address")
is incomplete and would trigger a NULL dereference.
(Fortunately, the code is not in released kernel, and in fact
 currently not reachable.)

Signed-off-by: Rémi Denis-Courmont <remi.denis-courmont@nokia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
net/phonet/af_phonet.c