From: Jeff Dike <jdike@addtoit.com>
Date: Mon, 10 Jul 2006 11:45:11 +0000 (-0700)
Subject: [PATCH] uml: fix exitcall ordering bug
X-Git-Tag: v2.6.18-rc2~156
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=61232f2fe44f7ac12d7512d099a8f10923eff7ea;p=pandora-kernel.git

[PATCH] uml: fix exitcall ordering bug

This fixes an exitcall ordering bug - calls to ignore_sigio_fd can come from
exitcalls that come after the sigio thread has been killed.  This would cause
shutdown to hang or crash.

Fixed by having ignore_sigio_fd check that the thread is present before trying
to communicate with it.

Signed-off-by: Jeff Dike <jdike@addtoit.com>
Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---

Reading git-diff-tree failed