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=-13.1 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,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 8298FC433E3 for ; Sat, 8 Aug 2020 23:37:13 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 53E2E20825 for ; Sat, 8 Aug 2020 23:37:13 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1596929833; bh=BSX9EcTnUekZaIJkQio+Eo14SvKz1ux0nZh1+7uibnk=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=Svfz2so3IRb5RnLyLXpF3sZhe8+3AKb7QpCvd1VCnJhPLWZlUUbUT3q588KRxEFlG EZPNqiqsxVbr7ZjbUjORsHZxz2gPikWauXKAypRGs/pc69g7uOD6ZM417Nx/F3Ktew 1WRmQpwlnb6N3l7qw5LVckg8jKrogJetRcTKF0e4= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727871AbgHHXhM (ORCPT ); Sat, 8 Aug 2020 19:37:12 -0400 Received: from mail.kernel.org ([198.145.29.99]:49992 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727834AbgHHXhH (ORCPT ); Sat, 8 Aug 2020 19:37:07 -0400 Received: from sasha-vm.mshome.net (c-73-47-72-35.hsd1.nh.comcast.net [73.47.72.35]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 4969220716; Sat, 8 Aug 2020 23:37:06 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1596929827; bh=BSX9EcTnUekZaIJkQio+Eo14SvKz1ux0nZh1+7uibnk=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=nTaSD538e8S5vKBicQoars1cYk23evCgKf+9YQYwzKAtiLu48xb+xrNXYZDL4hh0H BJ4YhwYqvMOWPhxAO17a6C9LDRWwyVMPSpOM4guvv7ZmbTi1XmUypYF7FZSjDtlur5 rcghnF7FO+/4SUAE2FNqHZtGSXESD4Nlhs33Facw= From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Tiezhu Yang , Marc Zyngier , Sasha Levin , linux-mips@vger.kernel.org Subject: [PATCH AUTOSEL 5.8 59/72] irqchip/loongson-htvec: Fix potential resource leak Date: Sat, 8 Aug 2020 19:35:28 -0400 Message-Id: <20200808233542.3617339-59-sashal@kernel.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20200808233542.3617339-1-sashal@kernel.org> References: <20200808233542.3617339-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Tiezhu Yang [ Upstream commit 652d54e77a438cf38a5731d8f9983c81e72dc429 ] In the function htvec_of_init(), system resource "parent_irq" was not released in an error case. Thus add a jump target for the completion of the desired exception handling. Fixes: 818e915fbac5 ("irqchip: Add Loongson HyperTransport Vector support") Signed-off-by: Tiezhu Yang Signed-off-by: Marc Zyngier Link: https://lore.kernel.org/r/1594087972-21715-4-git-send-email-yangtiezhu@loongson.cn Signed-off-by: Sasha Levin --- drivers/irqchip/irq-loongson-htvec.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/irqchip/irq-loongson-htvec.c b/drivers/irqchip/irq-loongson-htvec.c index 1ece9337c78dc..b36d403383230 100644 --- a/drivers/irqchip/irq-loongson-htvec.c +++ b/drivers/irqchip/irq-loongson-htvec.c @@ -192,7 +192,7 @@ static int htvec_of_init(struct device_node *node, if (!priv->htvec_domain) { pr_err("Failed to create IRQ domain\n"); err = -ENOMEM; - goto iounmap_base; + goto irq_dispose; } htvec_reset(priv); @@ -203,6 +203,9 @@ static int htvec_of_init(struct device_node *node, return 0; +irq_dispose: + for (; i > 0; i--) + irq_dispose_mapping(parent_irq[i - 1]); iounmap_base: iounmap(priv->base); free_priv: -- 2.25.1