From 4a70e255449c9a13eed7a6eeecc85a1ea63cef76 Mon Sep 17 00:00:00 2001 From: Chao Yu Date: Wed, 5 Sep 2018 14:54:02 +0800 Subject: [PATCH] f2fs: fix memory leak of percpu counter in fill_super() In fill_super -> init_percpu_info, we should destroy percpu counter in error path, otherwise memory allcoated for percpu counter will leak. Signed-off-by: Chao Yu Signed-off-by: Jaegeuk Kim --- fs/f2fs/super.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c index 2f55713f7f99..b2acb7f751f1 100644 --- a/fs/f2fs/super.c +++ b/fs/f2fs/super.c @@ -2458,8 +2458,12 @@ static int init_percpu_info(struct f2fs_sb_info *sbi) if (err) return err; - return percpu_counter_init(&sbi->total_valid_inode_count, 0, + err = percpu_counter_init(&sbi->total_valid_inode_count, 0, GFP_KERNEL); + if (err) + percpu_counter_destroy(&sbi->alloc_valid_block_count); + + return err; } #ifdef CONFIG_BLK_DEV_ZONED