xiaoxiang781216 commented on code in PR #16197:
URL: https://github.com/apache/nuttx/pull/16197#discussion_r2041152859
##########
sched/semaphore/sem_destroy.c:
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@@ -74,9 +74,9 @@ int nxsem_destroy(FAR sem_t *sem)
* leave the count unchanged but still return OK.
*/
- old = atomic_read(NXSEM_COUNT(sem));
do
{
+ old = atomic_read(NXSEM_COUNT(sem));
Review Comment:
but atomic_try_cmpxchg_release at line 85 will update old to the latest
value, why do we need reread it here?
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