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-rw-r--r--os/hal/src/serial.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/os/hal/src/serial.c b/os/hal/src/serial.c
index 54db8e95d..1372d5acc 100644
--- a/os/hal/src/serial.c
+++ b/os/hal/src/serial.c
@@ -141,7 +141,7 @@ void sdObjectInit(SerialDriver *sdp, qnotify_t inotify, qnotify_t onotify) {
*/
void sdStart(SerialDriver *sdp, const SerialConfig *config) {
- chDbgCheck((sdp != NULL) && (config != NULL), "sdStart");
+ chDbgCheck(sdp != NULL, "sdStart");
chSysLock();
chDbgAssert((sdp->sd.state == SD_STOP) || (sdp->sd.state == SD_READY),
@@ -251,8 +251,10 @@ sdflags_t sdGetAndClearFlags(SerialDriver *sdp) {
chDbgCheck(sdp != NULL, "sdGetAndClearFlags");
+ chSysLock();
mask = sdp->sd.flags;
sdp->sd.flags = SD_NO_ERROR;
+ chSysUnlock();
return mask;
}