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 X-Spam-Level: X-Spam-Status: No, score=-9.8 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 0D531CA9EAF for ; Sun, 27 Oct 2019 21:13:03 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id D405721726 for ; Sun, 27 Oct 2019 21:13:02 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1572210782; bh=trbv+VX8ypWF9nLMq+Swrlq2rc9HVtwaARcsqoqOohU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=q9LdFHvWenwVTRelYnKO3flfA/S5M1+NjSQ4bI3sV6BIZ8HThjdMVefu7CSbGl0sk Gi16nkHXiNkbQmwmz2RqiHA6akcn4d9m9jUlj05QlbXk9r/CJ3xdMuN2tcW0dT0F74 IzABUByS5LQiRVoPhn9Qgpqch6XQeiZSoBlvpoW4= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730158AbfJ0VNC (ORCPT ); Sun, 27 Oct 2019 17:13:02 -0400 Received: from mail.kernel.org ([198.145.29.99]:60038 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730153AbfJ0VNB (ORCPT ); Sun, 27 Oct 2019 17:13:01 -0400 Received: from localhost (100.50.158.77.rev.sfr.net [77.158.50.100]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 2268320B7C; Sun, 27 Oct 2019 21:13:00 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1572210780; bh=trbv+VX8ypWF9nLMq+Swrlq2rc9HVtwaARcsqoqOohU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=h6+XW2OVFg5JsCeo99PThywQCkAcznWTbgQPyrksDNjbTOolgSmrvwTS+H9j5Tr1W PquMyYSCYwGcxLHNAhfxsGvjy4zcd5OHwxgo7wdqd2pG6MpG8949oNQcljfZzhZAgk 6RmOucwt+jXSdXKC1AuqOM/RYLfHPqzf0CEFUdFM= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Wen Yang , Linus Walleij , Andrew Lunn , Vivien Didelot , Florian Fainelli , "David S. Miller" , netdev@vger.kernel.org, Sasha Levin Subject: [PATCH 4.19 15/93] net: dsa: rtl8366rb: add missing of_node_put after calling of_get_child_by_name Date: Sun, 27 Oct 2019 22:00:27 +0100 Message-Id: <20191027203254.973862216@linuxfoundation.org> X-Mailer: git-send-email 2.23.0 In-Reply-To: <20191027203251.029297948@linuxfoundation.org> References: <20191027203251.029297948@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Wen Yang [ Upstream commit f32eb9d80470dab05df26b6efd02d653c72e6a11 ] of_node_put needs to be called when the device node which is got from of_get_child_by_name finished using. irq_domain_add_linear() also calls of_node_get() to increase refcount, so irq_domain will not be affected when it is released. Fixes: d8652956cf37 ("net: dsa: realtek-smi: Add Realtek SMI driver") Signed-off-by: Wen Yang Cc: Linus Walleij Cc: Andrew Lunn Cc: Vivien Didelot Cc: Florian Fainelli Cc: "David S. Miller" Cc: netdev@vger.kernel.org Cc: linux-kernel@vger.kernel.org Reviewed-by: Linus Walleij Signed-off-by: David S. Miller Signed-off-by: Sasha Levin --- drivers/net/dsa/rtl8366rb.c | 16 ++++++++++------ 1 file changed, 10 insertions(+), 6 deletions(-) diff --git a/drivers/net/dsa/rtl8366rb.c b/drivers/net/dsa/rtl8366rb.c index a4d5049df6928..f4b14b6acd22d 100644 --- a/drivers/net/dsa/rtl8366rb.c +++ b/drivers/net/dsa/rtl8366rb.c @@ -507,7 +507,8 @@ static int rtl8366rb_setup_cascaded_irq(struct realtek_smi *smi) irq = of_irq_get(intc, 0); if (irq <= 0) { dev_err(smi->dev, "failed to get parent IRQ\n"); - return irq ? irq : -EINVAL; + ret = irq ? irq : -EINVAL; + goto out_put_node; } /* This clears the IRQ status register */ @@ -515,7 +516,7 @@ static int rtl8366rb_setup_cascaded_irq(struct realtek_smi *smi) &val); if (ret) { dev_err(smi->dev, "can't read interrupt status\n"); - return ret; + goto out_put_node; } /* Fetch IRQ edge information from the descriptor */ @@ -537,7 +538,7 @@ static int rtl8366rb_setup_cascaded_irq(struct realtek_smi *smi) val); if (ret) { dev_err(smi->dev, "could not configure IRQ polarity\n"); - return ret; + goto out_put_node; } ret = devm_request_threaded_irq(smi->dev, irq, NULL, @@ -545,7 +546,7 @@ static int rtl8366rb_setup_cascaded_irq(struct realtek_smi *smi) "RTL8366RB", smi); if (ret) { dev_err(smi->dev, "unable to request irq: %d\n", ret); - return ret; + goto out_put_node; } smi->irqdomain = irq_domain_add_linear(intc, RTL8366RB_NUM_INTERRUPT, @@ -553,12 +554,15 @@ static int rtl8366rb_setup_cascaded_irq(struct realtek_smi *smi) smi); if (!smi->irqdomain) { dev_err(smi->dev, "failed to create IRQ domain\n"); - return -EINVAL; + ret = -EINVAL; + goto out_put_node; } for (i = 0; i < smi->num_ports; i++) irq_set_parent(irq_create_mapping(smi->irqdomain, i), irq); - return 0; +out_put_node: + of_node_put(intc); + return ret; } static int rtl8366rb_set_addr(struct realtek_smi *smi) -- 2.20.1