Merge tag 'wq-for-7.3-rc7-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq

Pull workqueue fix from Tejun Heo:

 - Fix a NULL dereference in the check for whether the current task is
   running a memory reclaim work item when called from a kworker outside
   work item execution

* tag 'wq-for-7.3-rc7-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq:
  workqueue: Fix NULL current_pwq deref in mem-reclaim helper

kernel/workqueue.c

@@ -6320,7 +6320,7 @@ bool current_is_workqueue_mem_reclaim(void)
 {
 	struct worker *worker = current_wq_worker();
 
-	return worker &&
+	return worker && worker->current_pwq &&
 		((worker->current_pwq->wq->flags &
 		  (WQ_MEM_RECLAIM | __WQ_LEGACY)) == WQ_MEM_RECLAIM);
 }