From: Ingo Molnar <mingo@elte.hu>
Date: Fri, 13 Mar 2009 09:32:07 +0000 (+0100)
Subject: futex: remove the pointer math from double_unlock_hb, fix
X-Git-Tag: v2.6.30-rc1~629^2~1
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=88f502fedba82eff252b6420e8b8328e4ae25c67;p=pandora-kernel.git

futex: remove the pointer math from double_unlock_hb, fix

Impact: fix double unlock crash

Thomas Gleixner noticed that the simplified double_unlock_hb()
became ... too unsophisticated: in the hb1 == hb2 case it will
do a double unlock.

Reported-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Darren Hart <dvhltc@us.ibm.com>
LKML-Reference: <20090312221118.11146.68610.stgit@Aeon>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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