__btrfs_start_workers returns 0 in case it raced with
btrfs_stop_workers and lost the race. This is wrong because worker in
this case is not allowed to start and is in fact destroyed. Return
-EINVAL instead.
Signed-off-by: Ilya Dryomov <idryomov@xxxxxxxxx>
---
fs/btrfs/async-thread.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/fs/btrfs/async-thread.c b/fs/btrfs/async-thread.c
index 08cc08f..1d5f3d7 100644
--- a/fs/btrfs/async-thread.c
+++ b/fs/btrfs/async-thread.c
@@ -495,6 +495,7 @@ static int __btrfs_start_workers(struct btrfs_workers *workers)
spin_lock_irq(&workers->lock);
if (workers->stopping) {
spin_unlock_irq(&workers->lock);
+ ret = -EINVAL;
goto fail_kthread;
}
list_add_tail(&worker->worker_list, &workers->idle_list);
--
1.7.10.4
--
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