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Merge branch 'locking-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

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Pull locking fixes from Ingo Molnar:
 "Two fixes: the paravirt spin_unlock() corruption/crash fix, and an
  rtmutex NULL dereference crash fix"

* 'locking-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/spinlocks/paravirt: Fix memory corruption on unlock
  locking/rtmutex: Avoid a NULL pointer dereference on deadlock
This commit is contained in:
Linus Torvalds
2015-02-21 10:45:03 -08:00
parent 5fbe4c224c d6abfdb202
commit 10436cf881
4 changed files with 64 additions and 55 deletions
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3
kernel/locking/rtmutex.c
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@@ -1193,7 +1193,8 @@ rt_mutex_slowlock(struct rt_mutex *lock, int state,
ret = __rt_mutex_slowlock(lock, state, timeout, &waiter);
if (unlikely(ret)) {
remove_waiter(lock, &waiter);
if (rt_mutex_has_waiters(lock))
remove_waiter(lock, &waiter);
rt_mutex_handle_deadlock(ret, chwalk, &waiter);
}