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| author | Christoph Hellwig <hch@lst.de> | 2023-01-18 18:30:23 +0100 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2023-01-19 19:26:34 -0500 |
| commit | 2d1a9d599b3ed9b9c58f64b8b71b5b9d770ceacf (patch) | |
| tree | 05fbead28b1adb47e8dcc4535b6b1492bef59b97 /fs/minix/namei.c | |
| parent | b61d15d5ff67c07907c194d4354ec0c35bc657d1 (diff) | |
| download | lwn-2d1a9d599b3ed9b9c58f64b8b71b5b9d770ceacf.tar.gz lwn-2d1a9d599b3ed9b9c58f64b8b71b5b9d770ceacf.zip | |
minix: fix error handling in minix_set_link
If minix_prepare_chunk fails, updating c/mtime and marking the
dir inode dirty is wrong, as the inode hasn't been modified. Also
propagate the error to the caller.
Note that this moves the dir_put_page call later, but that matches
other uses of this helper in the directory code.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs/minix/namei.c')
| -rw-r--r-- | fs/minix/namei.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/fs/minix/namei.c b/fs/minix/namei.c index 7dc481418871..382ead96bf54 100644 --- a/fs/minix/namei.c +++ b/fs/minix/namei.c @@ -213,10 +213,11 @@ static int minix_rename(struct user_namespace *mnt_userns, new_de = minix_find_entry(new_dentry, &new_page); if (!new_de) goto out_dir; - err = 0; - minix_set_link(new_de, new_page, old_inode); + err = minix_set_link(new_de, new_page, old_inode); kunmap(new_page); put_page(new_page); + if (err) + goto out_dir; new_inode->i_ctime = current_time(new_inode); if (dir_de) drop_nlink(new_inode); @@ -233,8 +234,9 @@ static int minix_rename(struct user_namespace *mnt_userns, mark_inode_dirty(old_inode); if (dir_de) { - minix_set_link(dir_de, dir_page, new_dir); - inode_dec_link_count(old_dir); + err = minix_set_link(dir_de, dir_page, new_dir); + if (!err) + inode_dec_link_count(old_dir); } out_dir: if (dir_de) { |