bugfix: release master CPU must signal task was picked

Otherwise, the release master CPU may try to reschedule in an infinite
loop.

1 files changed, 3 insertions, 1 deletions

diff --git a/litmus/sched_gsn_edf.c b/litmus/sched_gsn_edf.c
index c5c9600c33d8..2a649beed791 100644
--- a/litmus/sched_gsn_edf.c
+++ b/litmus/sched_gsn_edf.c
@@ -374,8 +374,10 @@ static struct task_struct* gsnedf_schedule(struct task_struct * prev)
         /* Bail out early if we are the release master.
          * The release master never schedules any real-time tasks.
          */
-        if (gsnedf.release_master == entry->cpu)
+        if (gsnedf.release_master == entry->cpu) {
+                sched_state_task_picked();
                 return NULL;
+        }
 #endif
 
         raw_spin_lock(&gsnedf_lock);