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mm/mm_heap/mm_sem.c: add getpid() return check in mm_trysemaphore()

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Change-Id: Ifd56e3ccc22cf0a50f52e643b7a87aab0d0dca06
Signed-off-by: ligd <liguiding@fishsemi.com>
This commit is contained in:
ligd 2020-04-08 16:03:01 +08:00 • committed by patacongo
parent afe08b666c
commit 78eb9f73dd
1 changed files with 5 additions and 0 deletions
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5
mm/mm_heap/mm_sem.c
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@ -174,6 +174,11 @@ int mm_trysemaphore(FAR struct mm_heap_s *heap)
* 'else', albeit with a nonsensical PID value.
*/
if (my_pid < 0)
{
return my_pid;
}
/* Does the current task already hold the semaphore? Is the current
* task actually running?
*/