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Another CAN driver fix: From inspection, it appears that RTR counter was not being handled correctly

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This commit is contained in:
Gregory Nutt
2015-07-15 19:52:08 -06:00
parent f41df38b0b
commit bf1adc1e55
1 changed files with 2 additions and 1 deletions
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drivers/can.c
+2 -1
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@@ -707,6 +707,7 @@ int can_register(FAR const char *path, FAR struct can_dev_s *dev)
dev->cd_ocount = 0;
dev->cd_ntxwaiters = 0;
dev->cd_nrxwaiters = 0;
dev->cd_npendrtr = 0;
sem_init(&dev->cd_xmit.tx_sem, 0, 0);
sem_init(&dev->cd_recv.rx_sem, 0, 0);
@@ -716,7 +717,6 @@ int can_register(FAR const char *path, FAR struct can_dev_s *dev)
{
sem_init(&dev->cd_rtr[i].cr_sem, 0, 0);
dev->cd_rtr[i].cr_msg = NULL;
dev->cd_npendrtr--;
}
/* Initialize/reset the CAN hardware */
@@ -798,6 +798,7 @@ int can_receive(FAR struct can_dev_s *dev, FAR struct can_hdr_s *hdr,
/* Mark the entry unused */
rtr->cr_msg = NULL;
dev->cd_npendrtr--;
/* And restart the waiting thread */