From: Ian Kent <raven@themaw.net>
Date: Thu, 24 Jul 2008 04:30:20 +0000 (-0700)
Subject: autofs4: check kernel communication pipe is valid for write
X-Git-Tag: v2.6.27-rc1~632
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e64be33ccaceaca67c84237dff8805b861398eab;p=pandora-kernel.git

autofs4: check kernel communication pipe is valid for write

It is possible for an autofs mount to become catatonic (and for the daemon
communication pipe to become NULL) after a wait has been initiallized but
before the request has been sent to the daemon.  We need to check for this
before sending the request packet.

Signed-off-by: Ian Kent <raven@themaw.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

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