xattr_handler: pass dentry and inode as separate arguments of ->get()

... and do not assume they are already attached to each other

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/fs/xattr.c b/fs/xattr.c
index 4861322..461ba45 100644
--- a/fs/xattr.c
+++ b/fs/xattr.c
@@ -698,7 +698,8 @@
 	handler = xattr_resolve_name(dentry->d_sb->s_xattr, &name);
 	if (IS_ERR(handler))
 		return PTR_ERR(handler);
-	return handler->get(handler, dentry, name, buffer, size);
+	return handler->get(handler, dentry, d_inode(dentry),
+			    name, buffer, size);
 }
 
 /*