diff --git a/kernel/base/ipc/los_futex.c b/kernel/base/ipc/los_futex.c index 9e720e2fd9e75b72602b1dec5f4d300e7472a796..d831a7c54738cdb128033759055c6f90dfb73b1d 100644 --- a/kernel/base/ipc/los_futex.c +++ b/kernel/base/ipc/los_futex.c @@ -199,6 +199,9 @@ STATIC INLINE VOID OsFutexReplaceQueueListHeadNode(FutexNode *oldHeadNode, Futex LOS_DL_LIST *futexList = oldHeadNode->futexList.pstPrev; LOS_ListDelete(&oldHeadNode->futexList); LOS_ListHeadInsert(futexList, &newHeadNode->futexList); + if ((newHeadNode->queueList.pstNext == NULL) || (newHeadNode->queueList.pstPrev == NULL)) { + LOS_ListInit(&newHeadNode->queueList); + } } STATIC INLINE VOID OsFutexDeleteKeyFromFutexList(FutexNode *node) @@ -319,11 +322,10 @@ STATIC VOID OsFutexInsertNewFutexKeyToHash(FutexNode *node) futexList != &(hashNode->lockList); futexList = futexList->pstNext) { headNode = OS_FUTEX_FROM_FUTEXLIST(futexList); - if (node->key <= headNode->key) { + if (node->key <= headNode->key) { LOS_ListTailInsert(&(headNode->futexList), &(node->futexList)); break; } - } EXIT: @@ -797,6 +799,7 @@ EXIT_UNLOCK_ERR: STATIC INT32 OsFutexRequeueInsertNewKey(UINTPTR newFutexKey, INT32 newIndex, FutexNode *oldHeadNode) { + BOOL queueListIsEmpty = FALSE; INT32 ret; UINT32 intSave; LosTaskCB *task = NULL; @@ -817,25 +820,33 @@ STATIC INT32 OsFutexRequeueInsertNewKey(UINTPTR newFutexKey, INT32 newIndex, Fut nextNode = OS_FUTEX_FROM_QUEUELIST(queueList); SCHEDULER_LOCK(intSave); if (LOS_ListEmpty(&nextNode->pendList)) { - queueList = queueList->pstNext; + if (LOS_ListEmpty(queueList)) { + queueListIsEmpty = TRUE; + } else { + queueList = queueList->pstNext; + } OsFutexDeinitFutexNode(nextNode); SCHEDULER_UNLOCK(intSave); - if (queueList->pstNext != NULL) { - continue; - } else { + if (queueListIsEmpty) { return LOS_OK; } + + continue; } task = OS_TCB_FROM_PENDLIST(LOS_DL_LIST_FIRST(&(nextNode->pendList))); - queueList = queueList->pstNext; + if (LOS_ListEmpty(queueList)) { + queueListIsEmpty = TRUE; + } else { + queueList = queueList->pstNext; + } LOS_ListDelete(&nextNode->queueList); ret = OsFutexInsertTasktoPendList(&newHeadNode, nextNode, task); SCHEDULER_UNLOCK(intSave); if (ret != LOS_OK) { PRINT_ERR("Futex requeue insert new key failed!\n"); } - } while (queueList->pstNext != NULL); + } while (!queueListIsEmpty); return LOS_OK; }