jlaitine commented on code in PR #16194:
URL: https://github.com/apache/nuttx/pull/16194#discussion_r2059016085
##########
sched/semaphore/sem_post.c:
##########
@@ -85,19 +87,54 @@ int nxsem_post_slow(FAR sem_t *sem)
flags = enter_critical_section();
- /* Check the maximum allowable value */
+ if (mutex)
+ {
+ /* Mutex post from interrupt context is not allowed */
+
+ DEBUGASSERT(!up_interrupt_context());
+
+ /* Lock the mutex for us by setting the blocking bit */
+
+ mholder = atomic_fetch_or(NXSEM_MHOLDER(sem), NXSEM_MBLOCKS_BIT);
+
+ /* Mutex post from another thread is not allowed, unless
Review Comment:
Going around the reset again.... I DO want to remove it. But I don't
understand why it is there in that serial driver, and I implemented it in the
way that it works as before. So I don't want to remove it before someone
removes that from the serial driver.
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