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| author | Colin Ian King <colin.king@canonical.com> | 2021-03-04 09:21:18 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-05-19 10:13:00 +0200 |
| commit | 2d6d5b4fc498f2e429ae5b6439780ae5d900a3f9 (patch) | |
| tree | f3ffca1069391b8881453562a62f81423ca0e0dd /fs/f2fs | |
| parent | 1c20a4896409f5ca1c770e1880c33d0a28a8b10f (diff) | |
f2fs: fix a redundant call to f2fs_balance_fs if an error occurs
[ Upstream commit 28e18ee636ba28532dbe425540af06245a0bbecb ]
The uninitialized variable dn.node_changed does not get set when a
call to f2fs_get_node_page fails. This uninitialized value gets used
in the call to f2fs_balance_fs() that may or not may not balances
dirty node and dentry pages depending on the uninitialized state of
the variable. Fix this by only calling f2fs_balance_fs if err is
not set.
Thanks to Jaegeuk Kim for suggesting an appropriate fix.
Addresses-Coverity: ("Uninitialized scalar variable")
Fixes: 2a3407607028 ("f2fs: call f2fs_balance_fs only when node was changed")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'fs/f2fs')
| -rw-r--r-- | fs/f2fs/inline.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/fs/f2fs/inline.c b/fs/f2fs/inline.c index b9e37f0b3e09..1d7dafdaffe3 100644 --- a/fs/f2fs/inline.c +++ b/fs/f2fs/inline.c @@ -218,7 +218,8 @@ out: f2fs_put_page(page, 1); - f2fs_balance_fs(sbi, dn.node_changed); + if (!err) + f2fs_balance_fs(sbi, dn.node_changed); return err; } |