workqueue: Calling destroy_work_on_stack() to pair with INIT_WORK_ONSTACK()

In case CONFIG_DEBUG_OBJECTS_WORK is defined, it is needed to
call destroy_work_on_stack() which frees the debug object to pair
with INIT_WORK_ONSTACK().

Signed-off-by: Liu, Chuansheng <chuansheng.liu@intel.com>
Signed-off-by: Tejun Heo <tj@kernel.org>

1 files changed, 2 insertions, 0 deletions

diff --git a/kernel/workqueue.c b/kernel/workqueue.c
index 987293d03ebc..00df11270325 100644
--- a/kernel/workqueue.c
+++ b/kernel/workqueue.c
@@ -4776,6 +4776,7 @@ static int workqueue_cpu_down_callback(struct notifier_block *nfb,
 
                 /* wait for per-cpu unbinding to finish */
                 flush_work(&unbind_work);
+                destroy_work_on_stack(&unbind_work);
                 break;
         }
         return NOTIFY_OK;
@@ -4822,6 +4823,7 @@ long work_on_cpu(int cpu, long (*fn)(void *), void *arg)
          */
         __flush_work(&wfc.work);
 
+        destroy_work_on_stack(&wfc.work);
         return wfc.ret;
 }
 EXPORT_SYMBOL_GPL(work_on_cpu);