tree 5063980d641f077da073ce972028c2b07ccb1bbc
parent f061d35150003b7fd5b133d14d66a74500fdaa60
author Ingo Molnar <mingo@elte.hu> 1236936727 +0100
committer Ingo Molnar <mingo@elte.hu> 1236936727 +0100

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>