A submitter workqueue is dynamically allocated by init_submitter() called by drbd_create_device(), we should destroy it when this device is not needed or destroyed. Fixes: 113fef9e20e0 ("drbd: prepare to queue write requests on a submit worker") Signed-off-by: Wang ShaoBo <bobo.shaobowang@xxxxxxxxxx> --- drivers/block/drbd/drbd_main.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/block/drbd/drbd_main.c b/drivers/block/drbd/drbd_main.c index 78cae4e75af1..2d6b6d1c5ff4 100644 --- a/drivers/block/drbd/drbd_main.c +++ b/drivers/block/drbd/drbd_main.c @@ -2217,6 +2217,8 @@ void drbd_destroy_device(struct kref *kref) kref_put(&peer_device->connection->kref, drbd_destroy_connection); kfree(peer_device); } + if (device->submit.wq) + destroy_workqueue(device->submit.wq); kfree(device); kref_put(&resource->kref, drbd_destroy_resource); } @@ -2807,6 +2809,8 @@ enum drbd_ret_code drbd_create_device(struct drbd_config_context *adm_ctx, unsig put_disk(disk); out_no_disk: kref_put(&resource->kref, drbd_destroy_resource); + if (device->submit.wq) + destroy_workqueue(device->submit.wq); kfree(device); return err; } -- 2.25.1