down_trylock() is the opposite of mutex_trylock(). It returns zero on
success and one on failure.
Fixes: f4ef95631ebf ('dm thin: do not run the worker thread if pool is suspended')
Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
diff --git a/drivers/md/dm-thin.c b/drivers/md/dm-thin.c
index 6cbe9d2e0385..7d8e03c21fa9 100644
--- a/drivers/md/dm-thin.c
+++ b/drivers/md/dm-thin.c
@@ -237,7 +237,7 @@ struct thin_c {
*/
static void wake_worker(struct pool *pool)
{
- if (down_trylock(&pool->queue_work_lock)) {
+ if (!down_trylock(&pool->queue_work_lock)) {
queue_work(pool->wq, &pool->worker);
up(&pool->queue_work_lock);
}
--
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