new helper: file_inode(file)

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/fs/adfs/dir.c b/fs/adfs/dir.c
index b3be2e7..9cf874c 100644
--- a/fs/adfs/dir.c
+++ b/fs/adfs/dir.c
@@ -19,7 +19,7 @@
 static int
 adfs_readdir(struct file *filp, void *dirent, filldir_t filldir)
 {
-	struct inode *inode = filp->f_path.dentry->d_inode;
+	struct inode *inode = file_inode(filp);
 	struct super_block *sb = inode->i_sb;
 	struct adfs_dir_ops *ops = ADFS_SB(sb)->s_dir;
 	struct object_info obj;