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.
Fixes: 5311c0a2eee3 ("mm/damon/paddr: introduce DAMOS_MIGRATE_COLD action for demotion") # mm-stable
Reported-by: kernel test robot <lkp@xxxxxxxxx>
Reported-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
Closes: https://lore.kernel.org/r/202406251102.GE07hqfQ-lkp@xxxxxxxxx/
Signed-off-by: SeongJae Park <sj@xxxxxxxxxx>
---
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 af6aac388a43..a9ff35341d65 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 = {
/*
--
2.39.2
