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6loWPAN: Correct some list handling logic.

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This commit is contained in:
Gregory Nutt 2017-04-07 08:13:18 -06:00
parent 58d0c1f228
commit 19f19e31eb
2 changed files with 10 additions and 7 deletions
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1
net/sixlowpan/sixlowpan_framelist.c
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@ -425,6 +425,7 @@ int sixlowpan_queue_frames(FAR struct ieee802154_driver_s *ieee,
/* Add the next frame to the tail of the IOB queue */
qtail->io_flink = iob;
qtail = iob;
/* Keep track of the total amount of data queue */

16
wireless/ieee802154/mac802154_loopback.c
View File

@ -185,23 +185,25 @@ static int lo_txpoll(FAR struct net_driver_s *dev)
/* Find the tail of the IOB queue */
for (tail = NULL, iob = head;
iob != NULL;
tail = iob, iob = iob->io_flink);
iob != NULL;
tail = iob, iob = iob->io_flink);
/* Loop while there frames to be sent, i.e., while the IOB list is not
* emtpy. Sending, of course, just means relaying back through the network
* for this driver.
*/
while (!FRAME_IOB_EMPTY(&priv->lo_ieee))
while (head != NULL)
{
/* Remove the IOB from the queue */
FRAME_IOB_REMOVE(&priv->lo_ieee, iob);
iob = head;
head = iob->io_flink;
iob->io_flink = NULL;
/* Is the queue now empty? */
if (FRAME_IOB_EMPTY(&priv->lo_ieee))
if (head == NULL)
{
tail = NULL;
}
@ -239,8 +241,8 @@ static int lo_txpoll(FAR struct net_driver_s *dev)
/* Find the new tail of the IOB queue */
for (tail = iob, iob = iob->io_flink;
iob != NULL;
tail = iob, iob = iob->io_flink);
iob != NULL;
tail = iob, iob = iob->io_flink);
}
priv->lo_txdone = true;