OrgApache/incubator-nuttx
OrgApache
/
incubator-nuttx
mirror of https://github.com/apache/incubator-nuttx.git
1
0
Fork 0
Code Issues Releases Wiki Activity

tun: Fix the error of calling tun_close when tun_txavail or tun_txavail_work is executed 

When tun_txavail_work is running, switch to tun_close thread and priv->lock will be destroyed, then switch back to tun_txavail_work thread, an error will occur when nxmutex_unlock(&priv->lock)

Signed-off-by: zhanghongyu <zhanghongyu@xiaomi.com>
This commit is contained in:
zhanghongyu 2023-10-20 15:17:48 +08:00 committed by Xiang Xiao
parent 3b469271d7
commit 5374af077b
1 changed files with 11 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

13
drivers/net/tun.c
View File

@ -775,14 +775,21 @@ static void tun_txavail_work(FAR void *arg)
static int tun_txavail(FAR struct net_driver_s *dev)
{
FAR struct tun_device_s *priv = (FAR struct tun_device_s *)dev->d_private;
irqstate_t flags;
/* Schedule to perform the TX poll on the worker thread. */
flags = enter_critical_section(); /* No interrupts */
if (work_available(&priv->work))
/* Schedule to perform the TX poll on the worker thread when priv->bifup
* is true.
*/
if (priv->bifup && work_available(&priv->work))
{
work_queue(TUNWORK, &priv->work, tun_txavail_work, priv, 0);
}
leave_critical_section(flags);
return OK;
}
@ -911,6 +918,8 @@ static void tun_dev_uninit(FAR struct tun_device_s *priv)
tun_ifdown(&priv->dev);
work_cancel_sync(TUNWORK, &priv->work);
/* Remove the device from the OS */
netdev_unregister(&priv->dev);