From: Al Viro <viro@ftp.linux.org.uk>
Date: Wed, 14 Sep 2011 23:21:28 +0000 (-0700)
Subject: um: winch_interrupt() can happen inside of free_winch()
X-Git-Tag: v3.1-rc7~54
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=45cd5e2d4e632f55af1d6131f33b554c98f8b929;p=pandora-kernel.git

um: winch_interrupt() can happen inside of free_winch()

...  so set winch->fd to -1 before doing free_irq(), to avoid having
winch_interrupt() come from/during the latter and attempt to do
reactivate_fd() on something that's already gone.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Richard Weinberger <richard@nod.at>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

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