Merge remote-tracking branch 'origin' into irqdomain/next

1 files changed, 9 insertions, 4 deletions

diff --git a/kernel/fork.c b/kernel/fork.c
index ab5211b9e622..ff1cad3b7bdc 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -304,12 +304,17 @@ static struct task_struct *dup_task_struct(struct task_struct *orig)
         }
 
         err = arch_dup_task_struct(tsk, orig);
-        if (err)
-                goto out;
 
+        /*
+         * We defer looking at err, because we will need this setup
+         * for the clean up path to work correctly.
+         */
         tsk->stack = ti;
-
         setup_thread_stack(tsk, orig);
+
+        if (err)
+                goto out;
+
         clear_user_return_notifier(tsk);
         clear_tsk_need_resched(tsk);
         stackend = end_of_stack(tsk);
@@ -1415,7 +1420,7 @@ static struct task_struct *copy_process(unsigned long clone_flags,
          */
         p->group_leader = p;
         INIT_LIST_HEAD(&p->thread_group);
-        INIT_HLIST_HEAD(&p->task_works);
+        p->task_works = NULL;
 
         /* Now that the task is set up, run cgroup callbacks if
          * necessary. We need to run them before the task is visible