[PATCH 4/6] mm/damon/reclaim: reset enabled when DAMON start failed

[SeongJae Park <sj@kernel.org>]

When the startup fails, 'enabled' parameter is not reset.  As a result,
users show the parameter 'Y' while it is not really working.  Fix it by
resetting 'enabled' to 'false' when the work is failed.

Fixes: 04e98764befa ("mm/damon/reclaim: enable and disable synchronously")
Signed-off-by: SeongJae Park <sj@kernel.org>
---
 mm/damon/reclaim.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/mm/damon/reclaim.c b/mm/damon/reclaim.c
index a675150965e0..c91098d8aa51 100644
--- a/mm/damon/reclaim.c
+++ b/mm/damon/reclaim.c
@@ -329,7 +329,7 @@ static int __init damon_reclaim_init(void)
 	int err = damon_modules_new_paddr_ctx_target(&ctx, &target);
 
 	if (err)
-		return err;
+		goto out;
 
 	ctx->callback.after_wmarks_check = damon_reclaim_after_wmarks_check;
 	ctx->callback.after_aggregation = damon_reclaim_after_aggregation;
@@ -338,6 +338,9 @@ static int __init damon_reclaim_init(void)
 	if (enabled)
 		err = damon_reclaim_turn(true);
 
+out:
+	if (err && enabled)
+		enabled = false;
 	return err;
 }
 
-- 
2.39.5