3.16.51-rc1 review patch. If anyone has any objections, please let me know.
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From: Slava Pestov sp@daterainc.com
commit a664d0f05a2ec02c8f042db536d84d15d6e19e81 upstream.
We never started the writeback thread in this case, so don't stop it. Signed-off-by: Ben Hutchings ben@decadent.org.uk --- drivers/md/bcache/super.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
--- a/drivers/md/bcache/super.c +++ b/drivers/md/bcache/super.c @@ -1073,7 +1073,8 @@ static void cached_dev_free(struct closu 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);