[PATCH 6.12 442/590] erofs: fix potential return value overflow of z_erofs_shrink_scan()

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6.12-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Gao Xiang <hsiangkao@xxxxxxxxxxxxxxxxx>

[ Upstream commit db902986dee453bfb5835cbc8efa67154ab34caf ]

z_erofs_shrink_scan() could return small numbers due to the mistyped
`freed`.

Although I don't think it has any visible impact.

Fixes: 3883a79abd02 ("staging: erofs: introduce VLE decompression support")
Reviewed-by: Chao Yu <chao@xxxxxxxxxx>
Signed-off-by: Gao Xiang <hsiangkao@xxxxxxxxxxxxxxxxx>
Link: https://lore.kernel.org/r/20250114040058.459981-1-hsiangkao@xxxxxxxxxxxxxxxxx
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
 fs/erofs/zdata.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/fs/erofs/zdata.c b/fs/erofs/zdata.c
index 6be6146b67d9c..a8fb4b525f544 100644
--- a/fs/erofs/zdata.c
+++ b/fs/erofs/zdata.c
@@ -923,8 +923,7 @@ unsigned long z_erofs_shrink_scan(struct erofs_sb_info *sbi,
 				  unsigned long nr_shrink)
 {
 	struct z_erofs_pcluster *pcl;
-	unsigned int freed = 0;
-	unsigned long index;
+	unsigned long index, freed = 0;
 
 	xa_lock(&sbi->managed_pslots);
 	xa_for_each(&sbi->managed_pslots, index, pcl) {
-- 
2.39.5







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