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| author | Coly Li | 2019-06-28 13:59:44 +0200 |
|---|---|---|
| committer | Jens Axboe | 2019-06-28 15:39:16 +0200 |
| commit | f54d801dda14942dbefa00541d10603015b7859c (patch) | |
| tree | 2fd3723add980cfeb3d73fe7fc252be461301b5a /drivers/md/bcache | |
| parent | bcache: fix mistaken sysfs entry for io_error counter (diff) | |
| download | kernel-qcow2-linux-f54d801dda14942dbefa00541d10603015b7859c.tar.gz kernel-qcow2-linux-f54d801dda14942dbefa00541d10603015b7859c.tar.xz kernel-qcow2-linux-f54d801dda14942dbefa00541d10603015b7859c.zip | |
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>
Diffstat (limited to 'drivers/md/bcache')
| -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; |