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futex: Add missing error handling to FUTEX_REQUEUE_PI

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am: 99d403faba

Change-Id: I7d99bd76a3d1cd329295b157eb179fc194029c5d
This commit is contained in:
Peter Zijlstra
2017-03-22 11:32:47 +00:00
committed by android-build-merger
parent 2b31ed1f92 99d403faba
commit c3b48399e0
1 changed files with 2 additions and 0 deletions
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kernel/futex.c
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@@ -2773,6 +2773,8 @@ static int futex_wait_requeue_pi(u32 __user *uaddr, unsigned int flags,
if (q.pi_state && (q.pi_state->owner != current)) {
spin_lock(q.lock_ptr);
ret = fixup_pi_state_owner(uaddr2, &q, current);
if (ret && rt_mutex_owner(&q.pi_state->pi_mutex) == current)
rt_mutex_unlock(&q.pi_state->pi_mutex);
/*
* Drop the reference to the pi state which
* the requeue_pi() code acquired for us.