fs/ntfs3: Refactoring of various minor issues

Removed unused macro.
Changed null pointer checking.
Fixed inconsistent indenting.
Signed-off-by: Konstantin Komarov <almaz.alexandrovich@paragon-software.com>

fs/ntfs3/bitmap.c

@@ -658,7 +658,8 @@ int wnd_init(struct wnd_bitmap *wnd, struct super_block *sb, size_t nbits)
 	if (!wnd->bits_last)
 		wnd->bits_last = wbits;
 
-	wnd->free_bits = kcalloc(wnd->nwnd, sizeof(u16), GFP_NOFS | __GFP_NOWARN);
+	wnd->free_bits =
+		kcalloc(wnd->nwnd, sizeof(u16), GFP_NOFS | __GFP_NOWARN);
 	if (!wnd->free_bits)
 		return -ENOMEM;
 

fs/ntfs3/fsntfs.c

@@ -2599,8 +2599,10 @@ static inline bool is_reserved_name(struct ntfs_sb_info *sbi,
 	if (len == 4 || (len > 4 && le16_to_cpu(name[4]) == '.')) {
 		port_digit = le16_to_cpu(name[3]);
 		if (port_digit >= '1' && port_digit <= '9')
-			if (!ntfs_cmp_names(name, 3, COM_NAME, 3, upcase, false) ||
-			    !ntfs_cmp_names(name, 3, LPT_NAME, 3, upcase, false))
+			if (!ntfs_cmp_names(name, 3, COM_NAME, 3, upcase,
+					    false) ||
+			    !ntfs_cmp_names(name, 3, LPT_NAME, 3, upcase,
+					    false))
 				return true;
 	}
 

fs/ntfs3/namei.c

@@ -93,7 +93,7 @@ static struct dentry *ntfs_lookup(struct inode *dir, struct dentry *dentry,
 	 * If the MFT record of ntfs inode is not a base record, inode->i_op can be NULL.
 	 * This causes null pointer dereference in d_splice_alias().
 	 */
-	if (!IS_ERR(inode) && inode->i_op == NULL) {
+	if (!IS_ERR_OR_NULL(inode) && !inode->i_op) {
 		iput(inode);
 		inode = ERR_PTR(-EINVAL);
 	}

fs/ntfs3/ntfs.h

@@ -435,9 +435,6 @@ static inline u64 attr_svcn(const struct ATTRIB *attr)
 	return attr->non_res ? le64_to_cpu(attr->nres.svcn) : 0;
 }
 
-/* The size of resident attribute by its resident size. */
-#define BYTES_PER_RESIDENT(b) (0x18 + (b))
-
 static_assert(sizeof(struct ATTRIB) == 0x48);
 static_assert(sizeof(((struct ATTRIB *)NULL)->res) == 0x08);
 static_assert(sizeof(((struct ATTRIB *)NULL)->nres) == 0x38);