diff options
| author | Coly Li <colyli@suse.de> | 2019-06-28 19:59:44 +0800 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2019-06-28 07:39:16 -0600 |
| commit | f54d801dda14942dbefa00541d10603015b7859c (patch) | |
| tree | 2fd3723add980cfeb3d73fe7fc252be461301b5a | |
| parent | 5461999848e0462c14f306a62923d22de820a59c (diff) | |
bcache: destroy dc->writeback_write_wq if failed to create dc->writeback_thread
Commit 9baf30972b55 ("bcache: fix for gc and write-back race") added a
new work queue dc->writeback_write_wq, but forgot to destroy it in the
error condition when creating dc->writeback_thread failed.
This patch destroys dc->writeback_write_wq if kthread_create() returns
error pointer to dc->writeback_thread, then a memory leak is avoided.
Fixes: 9baf30972b55 ("bcache: fix for gc and write-back race")
Signed-off-by: Coly Li <colyli@suse.de>
Cc: stable@vger.kernel.org
Signed-off-by: Jens Axboe <axboe@kernel.dk>
| -rw-r--r-- | drivers/md/bcache/writeback.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/md/bcache/writeback.c b/drivers/md/bcache/writeback.c index 262f7ef20992..21081febcb59 100644 --- a/drivers/md/bcache/writeback.c +++ b/drivers/md/bcache/writeback.c @@ -833,6 +833,7 @@ int bch_cached_dev_writeback_start(struct cached_dev *dc) "bcache_writeback"); if (IS_ERR(dc->writeback_thread)) { cached_dev_put(dc); + destroy_workqueue(dc->writeback_write_wq); return PTR_ERR(dc->writeback_thread); } dc->writeback_running = true; |