Message ID | 1408623567-7739-2-git-send-email-stefan.bader@canonical.com |
---|---|
State | New |
Headers | show |
diff --git a/drivers/md/bcache/super.c b/drivers/md/bcache/super.c index c57bfa0..b2324ba 100644 --- a/drivers/md/bcache/super.c +++ b/drivers/md/bcache/super.c @@ -1052,7 +1052,8 @@ static void cached_dev_free(struct closure *cl) struct cached_dev *dc = container_of(cl, struct cached_dev, disk.cl); cancel_delayed_work_sync(&dc->writeback_rate_update); - kthread_stop(dc->writeback_thread); + if (!IS_ERR_OR_NULL(dc->writeback_thread)) + kthread_stop(dc->writeback_thread); mutex_lock(&bch_register_lock);