Mirrors_Framework/nuttx
1
0
Fork 0
mirror of https://github.com/apache/nuttx.git synced 2026-05-29 20:56:47 +08:00
Code Issues Actions 1 Packages Projects Releases Wiki Activity

drivers/can: correct checking sem is locked

Browse Source 
Object filled by nxsem_get_value can be zero or a negative number
fix for 190782c295

issue #1354
This commit is contained in:
Oleg Evseev
2020-07-05 20:56:24 +03:00
committed by Alan Carvalho de Assis
parent 908ee31e7d
commit 1798383a2d
1 changed files with 1 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files
drivers/can/can.c
+1 -1
View File
@@ -1360,7 +1360,7 @@ int can_receive(FAR struct can_dev_s *dev, FAR struct can_hdr_s *hdr,
* message buffer. * message buffer.
*/ */
if (sval < 0) if (sval <= 0)
{ {
can_givesem(&fifo->rx_sem); can_givesem(&fifo->rx_sem);
} }