diff options
Diffstat (limited to 'os/kernel/src/chsem.c')
| -rw-r--r-- | os/kernel/src/chsem.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/os/kernel/src/chsem.c b/os/kernel/src/chsem.c index 2a86a14f6..2959b4d63 100644 --- a/os/kernel/src/chsem.c +++ b/os/kernel/src/chsem.c @@ -117,7 +117,7 @@ void chSemResetI(Semaphore *sp, cnt_t n) { cnt = sp->s_cnt;
sp->s_cnt = n;
- while (cnt++ < 0)
+ while (++cnt <= 0)
chSchReadyI(lifo_remove(&sp->s_queue))->p_u.rdymsg = RDY_RESET;
}
@@ -220,7 +220,7 @@ void chSemSignal(Semaphore *sp) { chDbgCheck(sp != NULL, "chSemSignal");
chSysLock();
- if (sp->s_cnt++ < 0)
+ if (++sp->s_cnt <= 0)
chSchWakeupS(fifo_remove(&sp->s_queue), RDY_OK);
chSysUnlock();
}
@@ -235,7 +235,7 @@ void chSemSignalI(Semaphore *sp) { chDbgCheck(sp != NULL, "chSemSignalI");
- if (sp->s_cnt++ < 0) {
+ if (++sp->s_cnt <= 0) {
/* note, it is done this way in order to allow a tail call on
chSchReadyI().*/
Thread *tp = fifo_remove(&sp->s_queue);
@@ -261,7 +261,7 @@ msg_t chSemSignalWait(Semaphore *sps, Semaphore *spw) { chDbgCheck((sps != NULL) && (spw != NULL), "chSemSignalWait");
chSysLock();
- if (sps->s_cnt++ < 0)
+ if (++sps->s_cnt <= 0)
chSchReadyI(fifo_remove(&sps->s_queue))->p_u.rdymsg = RDY_OK;
if (--spw->s_cnt < 0) {
Thread *ctp = currp;
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