From 64548bc5347bd0517ae25f8a7076e7f3193f4f19 Mon Sep 17 00:00:00 2001
From: SeongJae Park <sj@kernel.org>
Date: Mon, 1 Jul 2024 09:53:32 -0700
Subject: [PATCH] mm/damon/paddr: initialize nr_succeeded in
__damon_pa_migrate_folio_list()
The variable is supposed to be set via later migrate_pages() call.
However, the function does not do that when CONFIG_MIGRATION is unset.
Initialize the variable to zero.
Link: https://lkml.kernel.org/r/20240701165332.47495-1-sj@kernel.org
Fixes: 5311c0a2eee3 ("mm/damon/paddr: introduce DAMOS_MIGRATE_COLD action for demotion")
Signed-off-by: SeongJae Park <sj@kernel.org>
Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Dan Carpenter <dan.carpenter@linaro.org>
Closes: https://lore.kernel.org/r/202406251102.GE07hqfQ-lkp@intel.com/
Cc: Honggyu Kim <honggyu.kim@sk.com>
Cc: Hyeongtak Ji <hyeongtak.ji@sk.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---
mm/damon/paddr.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/mm/damon/paddr.c b/mm/damon/paddr.c
index af6aac388a431..a9ff35341d65d 100644
--- a/mm/damon/paddr.c
+++ b/mm/damon/paddr.c
@@ -332,7 +332,7 @@ static unsigned int __damon_pa_migrate_folio_list(
struct list_head *migrate_folios, struct pglist_data *pgdat,
int target_nid)
{
- unsigned int nr_succeeded;
+ unsigned int nr_succeeded = 0;
nodemask_t allowed_mask = NODE_MASK_NONE;
struct migration_target_control mtc = {
/*
--
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