| User: | Jiri Slaby |
| Error type: | Leaving function in locked state |
| Error type description: | Some lock is not unlocked on all paths of a function, so it is leaked |
| File location: | include/linux/netdevice.h |
| Line in file: | 1570 |
| Project: | Linux Kernel |
| Project version: | 2.6.28 |
| Tools: |
Undetermined 1
|
| Entered: | 2012-03-04 17:07:06 UTC |
1540 txq->xmit_lock_owner = -1; 1541 spin_unlock_bh(&txq->_xmit_lock); 1542} 1543 1544/** 1545 * netif_tx_lock - grab network device transmit lock 1546 * @dev: network device 1547 * 1548 * Get network device transmit lock 1549 */ 1550static inline void netif_tx_lock(struct net_device *dev) 1551{ 1552 unsigned int i; 1553 int cpu; 1554 1555 spin_lock(&dev->tx_global_lock); 1556 cpu = smp_processor_id(); 1557 for (i = 0; i < dev->num_tx_queues; i++) { 1558 struct netdev_queue *txq = netdev_get_tx_queue(dev, i); 1559 1560 /* We are the only thread of execution doing a 1561 * freeze, but we have to grab the _xmit_lock in 1562 * order to synchronize with threads which are in 1563 * the ->hard_start_xmit() handler and already 1564 * checked the frozen bit. 1565 */ 1566 __netif_tx_lock(txq, cpu); 1567 set_bit(__QUEUE_STATE_FROZEN, &txq->state); 1568 __netif_tx_unlock(txq); 1569 } 1570} 1571 1572static inline void netif_tx_lock_bh(struct net_device *dev) 1573{ 1574 local_bh_disable(); 1575 netif_tx_lock(dev); 1576} 1577 1578static inline void netif_tx_unlock(struct net_device *dev) 1579{ 1580 unsigned int i;