[PATCH AUTOSEL 6.7 14/58] fs/ntfs3: Add and fix comments

Sasha Levin
2024-02-13T00:18:55Z

From: Konstantin Komarov <almaz.alexandrovich@paragon-software.com>

[ Upstream commit d6ca2d253900b9b0a3a1ad77541d606010f5e5eb ]

Signed-off-by: Konstantin Komarov <almaz.alexandrovich@paragon-software.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
fs/ntfs3/dir.c | 4 +++-
fs/ntfs3/fsntfs.c | 2 +-
fs/ntfs3/ntfs.h | 2 +-
fs/ntfs3/ntfs_fs.h | 2 +-
4 files changed, 6 insertions(+), 4 deletions(-)

diff --git a/fs/ntfs3/dir.c b/fs/ntfs3/dir.c
index 726122ecd39b..9f6dd445eb04 100644
--- a/fs/ntfs3/dir.c
+++ b/fs/ntfs3/dir.c
@@ -536,8 +536,10 @@ static int ntfs_dir_count(struct inode *dir, bool *is_empty, size_t *dirs,
e = Add2Ptr(hdr, off);
e_size = le16_to_cpu(e->size);
if (e_size < sizeof(struct NTFS_DE) ||
- off + e_size > end)
+ off + e_size > end) {
+ /* Looks like corruption. */
break;
+ }

if (de_is_last(e))
break;
diff --git a/fs/ntfs3/fsntfs.c b/fs/ntfs3/fsntfs.c
index 350461d8cece..321978019407 100644
--- a/fs/ntfs3/fsntfs.c
+++ b/fs/ntfs3/fsntfs.c
@@ -2129,8 +2129,8 @@ int ntfs_insert_security(struct ntfs_sb_info *sbi,
if (le32_to_cpu(d_security->size) == new_sec_size &&
d_security->key.hash == hash_key.hash &&
!memcmp(d_security + 1, sd, size_sd)) {
- *security_id = d_security->key.sec_id;
/* Such security already exists. */
+ *security_id = d_security->key.sec_id;
err = 0;
goto out;
}
diff --git a/fs/ntfs3/ntfs.h b/fs/ntfs3/ntfs.h
index 13e96fc63dae..c8981429c721 100644
--- a/fs/ntfs3/ntfs.h
+++ b/fs/ntfs3/ntfs.h
@@ -523,7 +523,7 @@ struct ATTR_LIST_ENTRY {
__le64 vcn; // 0x08: Starting VCN of this attribute.
struct MFT_REF ref; // 0x10: MFT record number with attribute.
__le16 id; // 0x18: struct ATTRIB ID.
- __le16 name[]; // 0x1A: Just to align. To get real name can use name_off.
+ __le16 name[]; // 0x1A: To get real name use name_off.

}; // sizeof(0x20)

diff --git a/fs/ntfs3/ntfs_fs.h b/fs/ntfs3/ntfs_fs.h
index 7510875efef6..abbc7182554a 100644
--- a/fs/ntfs3/ntfs_fs.h
+++ b/fs/ntfs3/ntfs_fs.h
@@ -874,7 +874,7 @@ int ntfs_init_acl(struct mnt_idmap *idmap, struct inode *inode,

int ntfs_acl_chmod(struct mnt_idmap *idmap, struct dentry *dentry);
ssize_t ntfs_listxattr(struct dentry *dentry, char *buffer, size_t size);
-extern const struct xattr_handler * const ntfs_xattr_handlers[];
+extern const struct xattr_handler *const ntfs_xattr_handlers[];

int ntfs_save_wsl_perm(struct inode *inode, __le16 *ea_size);
void ntfs_get_wsl_perm(struct inode *inode);
--
2.43.0