K 10
svn:author
V 7
attilio
K 8
svn:date
V 27
2010-05-19T15:06:09.112459Z
K 7
svn:log
V 482
Fix a race between ngs_rcvmsg() and soclose() which closes the control
socket while it is still in use.
priv->ctlsock is checked at the top of the function but without any
lock held, which means the control socket state may certainly change.
Add a similar protection to ngs_shutdown() even if a race is unlikely
to be experienced there.

Sponsored by:	Sandvine Incorporated
Obtained from:	Nima Misaghian @ Sandvine Incorporated
		<nmisaghian at sandvine dot com>
MFC after:	10 days

END