iokit/Kernel/IOInterruptController.cpp

458   controllerLock = IOSimpleLockAlloc();
459   if (controllerLock == 0) return kIOReturnNoResources;
540   interruptState = IOSimpleLockLockDisableInterrupt(controllerLock);
543   IOSimpleLockUnlockEnableInterrupt(controllerLock, interruptState);
583     interruptState = IOSimpleLockLockDisableInterrupt(controllerLock);
585     IOSimpleLockUnlockEnableInterrupt(controllerLock, interruptState);
621   interruptState = IOSimpleLockLockDisableInterrupt(controllerLock);
623     IOSimpleLockUnlockEnableInterrupt(controllerLock, interruptState);
629   IOSimpleLockUnlockEnableInterrupt(controllerLock, interruptState);
653   interruptState = IOSimpleLockLockDisableInterrupt(controllerLock);
662   IOSimpleLockUnlockEnableInterrupt(controllerLock, interruptState);
718   IOSimpleLockLock(controllerLock);
723   IOSimpleLockUnlock(controllerLock);