ched/sched/sched_waitpid.c: In waitpid, remember to grab the exited child ptr. After being unblocked in waitpid, the child pointer might be NULL. Modify to use group_exitchild to get the pointer of recent exited child.

2019-07-20 07:20:21 -06:00 · 2019-07-20 07:20:21 -06:00 · 8181a92a1d
parent 19f9e0038e
commit 8181a92a1d
1 changed files with 1 additions and 0 deletions
--- a/sched/sched/sched_waitpid.c
+++ b/sched/sched/sched_waitpid.c
@ -542,6 +542,7 @@ pid_t waitpid(pid_t pid, int *stat_loc, int options)
 #ifdef CONFIG_SCHED_CHILD_STATUS
          if (retains)
            {
+              child = group_exitchild(rtcb->group);
              DEBUGASSERT(child != NULL);

              /* Discard the child entry */