VFS: security/: d_inode() annotations

... except where that code acts as a filesystem driver, rather than
working with dentries given to it.

Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/security/smack/smackfs.c b/security/smack/smackfs.c
index bce4e8f..2611a65 100644
--- a/security/smack/smackfs.c
+++ b/security/smack/smackfs.c
@@ -2395,7 +2395,7 @@
 		return rc;
 	}
 
-	root_inode = sb->s_root->d_inode;
+	root_inode = d_inode(sb->s_root);
 
 	return 0;
 }