From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Sasha Levin <sashal@kernel.org>, Jaegeuk Kim <jaegeuk@kernel.org>,
linux-f2fs-devel@lists.sourceforge.net
Subject: [f2fs-dev] [PATCH AUTOSEL 4.19 135/205] f2fs: fix memory leak of percpu counter in fill_super()
Date: Fri, 8 Nov 2019 06:36:42 -0500 [thread overview]
Message-ID: <20191108113752.12502-135-sashal@kernel.org> (raw)
In-Reply-To: <20191108113752.12502-1-sashal@kernel.org>
From: Chao Yu <yuchao0@huawei.com>
[ Upstream commit 4a70e255449c9a13eed7a6eeecc85a1ea63cef76 ]
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 <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
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 588c575bd72b0..18534d03d112b 100644
--- a/fs/f2fs/super.c
+++ b/fs/f2fs/super.c
@@ -2510,8 +2510,12 @@ 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
--
2.20.1
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next prev parent reply other threads:[~2019-11-08 11:41 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20191108113752.12502-1-sashal@kernel.org>
2019-11-08 11:35 ` [f2fs-dev] [PATCH AUTOSEL 4.19 088/205] f2fs: avoid wrong decrypted data from disk Sasha Levin
2019-11-08 11:36 ` [f2fs-dev] [PATCH AUTOSEL 4.19 112/205] f2fs: submit bio after shutdown Sasha Levin
2019-11-08 11:36 ` [f2fs-dev] [PATCH AUTOSEL 4.19 134/205] f2fs: fix memory leak of write_io in fill_super() Sasha Levin
2019-11-08 11:36 ` Sasha Levin [this message]
2019-11-08 11:36 ` [f2fs-dev] [PATCH AUTOSEL 4.19 136/205] f2fs: fix setattr project check upon fssetxattr ioctl Sasha Levin
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