From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 74C8AC43334 for ; Mon, 13 Jun 2022 12:58:18 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1354446AbiFMM5w (ORCPT ); Mon, 13 Jun 2022 08:57:52 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:50312 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1354868AbiFMMzL (ORCPT ); Mon, 13 Jun 2022 08:55:11 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id F114F95B5; Mon, 13 Jun 2022 04:15:21 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 8EA4960B6B; Mon, 13 Jun 2022 11:15:21 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id A1856C34114; Mon, 13 Jun 2022 11:15:20 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1655118921; bh=bxtKf2OnoL+jFcjVx1pwcCDhAA6o9jCOcEZG0BBkEQQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=YxAJLwAiQ15mCwRSZrqBVVXx9pGzDVKfnW1yAX2/hdbg0TkaswVwl1V1GpbzRpiEN HxiOthWv95/3JD8WfDgtWAJGrM6BZEtIiRQ5Hj0jb6v+6j6YCQwAu536FyzIEZGbmR 5iQCIxiezvw+Wvm0yYFagbT5JzrGv5ntSyF94GpA= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Miaoqian Lin , =?UTF-8?q?Marek=20Beh=C3=BAn?= , "David S. Miller" , Sasha Levin Subject: [PATCH 5.15 075/247] net: dsa: mv88e6xxx: Fix refcount leak in mv88e6xxx_mdios_register Date: Mon, 13 Jun 2022 12:09:37 +0200 Message-Id: <20220613094925.233094232@linuxfoundation.org> X-Mailer: git-send-email 2.36.1 In-Reply-To: <20220613094922.843438024@linuxfoundation.org> References: <20220613094922.843438024@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Miaoqian Lin [ Upstream commit 02ded5a173619b11728b8bf75a3fd995a2c1ff28 ] of_get_child_by_name() returns a node pointer with refcount incremented, we should use of_node_put() on it when done. mv88e6xxx_mdio_register() pass the device node to of_mdiobus_register(). We don't need the device node after it. Add missing of_node_put() to avoid refcount leak. Fixes: a3c53be55c95 ("net: dsa: mv88e6xxx: Support multiple MDIO busses") Signed-off-by: Miaoqian Lin Reviewed-by: Marek Behún Signed-off-by: David S. Miller Signed-off-by: Sasha Levin --- drivers/net/dsa/mv88e6xxx/chip.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/net/dsa/mv88e6xxx/chip.c b/drivers/net/dsa/mv88e6xxx/chip.c index 0830d7bb7a00..f9efd0c8bab8 100644 --- a/drivers/net/dsa/mv88e6xxx/chip.c +++ b/drivers/net/dsa/mv88e6xxx/chip.c @@ -3492,6 +3492,7 @@ static int mv88e6xxx_mdios_register(struct mv88e6xxx_chip *chip, */ child = of_get_child_by_name(np, "mdio"); err = mv88e6xxx_mdio_register(chip, child, false); + of_node_put(child); if (err) return err; -- 2.35.1