From: Darren Hart <dvhart@linux.intel.com>
Date: Fri, 20 Jul 2012 18:53:29 +0000 (-0700)
Subject: futex: Test for pi_mutex on fault in futex_wait_requeue_pi()
X-Git-Tag: v3.6-rc2~35^2~2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=b6070a8d9853eda010a549fa9a09eb8d7269b929;p=pandora-kernel.git

futex: Test for pi_mutex on fault in futex_wait_requeue_pi()

If fixup_pi_state_owner() faults, pi_mutex may be NULL. Test
for pi_mutex != NULL before testing the owner against current
and possibly unlocking it.

Signed-off-by: Darren Hart <dvhart@linux.intel.com>
Cc: Dave Jones <davej@redhat.com>
Cc: Dan Carpenter <dan.carpenter@oracle.com>
Cc: stable@vger.kernel.org
Link: http://lkml.kernel.org/r/dc59890338fc413606f04e5c5b131530734dae3d.1342809673.git.dvhart@linux.intel.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---

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