From 7193a9defcab6f3d3f1eb64c68bad7534e5a39ad Mon Sep 17 00:00:00 2001 From: Mike Snitzer Date: Wed, 6 Jul 2016 09:06:37 -0400 Subject: dm rq: check kthread_run return for .request_fn request-based DM Check return value of kthread_run() in dm_old_init_request_queue(). Reported-by: Minfei Huang Signed-off-by: Mike Snitzer --- drivers/md/dm-rq.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'drivers/md') diff --git a/drivers/md/dm-rq.c b/drivers/md/dm-rq.c index 266f7b674108..aa81539374a6 100644 --- a/drivers/md/dm-rq.c +++ b/drivers/md/dm-rq.c @@ -819,6 +819,8 @@ int dm_old_init_request_queue(struct mapped_device *md) init_kthread_worker(&md->kworker); md->kworker_task = kthread_run(kthread_worker_fn, &md->kworker, "kdmwork-%s", dm_device_name(md)); + if (IS_ERR(md->kworker_task)) + return PTR_ERR(md->kworker_task); elv_register_queue(md->queue); -- cgit v1.2.3-59-g8ed1b