``` VOID RtmpOsIntLock(NDIS_SPIN_LOCK *pLockOrg, unsigned long *pIrqFlags) { OS_NDIS_SPIN_LOCK *pLock; pLock = (OS_NDIS_SPIN_LOCK *) (pLockOrg->pContent); if (pLock != NULL) { OS_INT_LOCK(pLock, *pIrqFlags); } else } ```