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authorAl Viro <viro@zeniv.linux.org.uk>2018-06-23 20:33:59 -0400
committerAl Viro <viro@zeniv.linux.org.uk>2018-06-30 09:43:45 -0400
commite876c445df4009d7b1ebdd2a92ca23566ca05440 (patch)
treef6095302e4657e05350bed67935dc18ee8a4adf4 /fs/hpfs
parentce397d215ccd07b8ae3f71db689aedb85d56ab40 (diff)
downloadlinux-e876c445df4009d7b1ebdd2a92ca23566ca05440.tar.bz2
hpfs: fix an inode leak in lookup, switch to d_splice_alias()
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs/hpfs')
-rw-r--r--fs/hpfs/dir.c23
1 files changed, 7 insertions, 16 deletions
diff --git a/fs/hpfs/dir.c b/fs/hpfs/dir.c
index c83ece7facc5..d85230c84ef2 100644
--- a/fs/hpfs/dir.c
+++ b/fs/hpfs/dir.c
@@ -244,6 +244,7 @@ struct dentry *hpfs_lookup(struct inode *dir, struct dentry *dentry, unsigned in
result = iget_locked(dir->i_sb, ino);
if (!result) {
hpfs_error(dir->i_sb, "hpfs_lookup: can't get inode");
+ result = ERR_PTR(-ENOMEM);
goto bail1;
}
if (result->i_state & I_NEW) {
@@ -266,6 +267,8 @@ struct dentry *hpfs_lookup(struct inode *dir, struct dentry *dentry, unsigned in
if (de->has_acl || de->has_xtd_perm) if (!sb_rdonly(dir->i_sb)) {
hpfs_error(result->i_sb, "ACLs or XPERM found. This is probably HPFS386. This driver doesn't support it now. Send me some info on these structures");
+ iput(result);
+ result = ERR_PTR(-EINVAL);
goto bail1;
}
@@ -301,29 +304,17 @@ struct dentry *hpfs_lookup(struct inode *dir, struct dentry *dentry, unsigned in
}
}
+bail1:
hpfs_brelse4(&qbh);
/*
* Made it.
*/
- end:
- end_add:
+end:
+end_add:
hpfs_unlock(dir->i_sb);
- d_add(dentry, result);
- return NULL;
-
- /*
- * Didn't.
- */
- bail1:
-
- hpfs_brelse4(&qbh);
-
- /*bail:*/
-
- hpfs_unlock(dir->i_sb);
- return ERR_PTR(-ENOENT);
+ return d_splice_alias(result, dentry);
}
const struct file_operations hpfs_dir_ops =