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| author | Namjae Jeon <namjae.jeon@samsung.com> | 2012-12-22 12:09:43 +0900 |
|---|---|---|
| committer | Jaegeuk Kim <jaegeuk.kim@samsung.com> | 2012-12-28 11:26:13 +0900 |
| commit | 06025f4df88e9e41f4ebcf6b4c3df30661332bc9 (patch) | |
| tree | 9d5fab4bb021444db75538a70095675af227dded /fs | |
| parent | 029cd28c1f739bbfc5105035696d5f1f4e45d161 (diff) | |
| download | blackbird-op-linux-06025f4df88e9e41f4ebcf6b4c3df30661332bc9.tar.gz blackbird-op-linux-06025f4df88e9e41f4ebcf6b4c3df30661332bc9.zip | |
f2fs: handle error from f2fs_iget_nowait
In case f2fs_iget_nowait returns error, it results in truncate_hole being
called with 'error' value as inode pointer. There is no check in truncate_hole
for valid inode, so it could result in crash due "invalid access to memory".
Avoid this by handling error condition properly.
Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com>
Signed-off-by: Amit Sahrawat <a.sahrawat@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/f2fs/recovery.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/fs/f2fs/recovery.c b/fs/f2fs/recovery.c index b07e9b6ef376..207e2c865c7e 100644 --- a/fs/f2fs/recovery.c +++ b/fs/f2fs/recovery.c @@ -228,6 +228,9 @@ static void check_index_in_prev_nodes(struct f2fs_sb_info *sbi, /* Deallocate previous index in the node page */ inode = f2fs_iget_nowait(sbi->sb, ino); + if (IS_ERR(inode)) + return; + truncate_hole(inode, bidx, bidx + 1); iput(inode); } |
