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 1E579C25B0F for ; Mon, 8 Aug 2022 01:47:10 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S242931AbiHHBrJ (ORCPT ); Sun, 7 Aug 2022 21:47:09 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:51448 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S243322AbiHHBqn (ORCPT ); Sun, 7 Aug 2022 21:46:43 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id BF67815814; Sun, 7 Aug 2022 18:36:48 -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 BAD9060DFE; Mon, 8 Aug 2022 01:36:47 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 0D995C43158; Mon, 8 Aug 2022 01:36:45 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1659922607; bh=UkgRBGRGiND0e5vjUxLk3kZH+BsEyc38Jo903maH+RY=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=ohfQK8rE9NHrW9aXfXrfUJhpvvhwFf6o3vgEhpfFDt0owidoD/Txe6+lNnQcb/T/3 1IgVZZDFuCRJNChiiSUDFYF3x91tkO6KbbRcqJ//oekob5bKHb8t2cA61niBC+kgrc oX88I77FHVejhUofYsstUvGB/BK8etTP0F1JeoXH6y3Eowc6tBusq6SC160nsouycW Izy729Eo/Is/v5b1MnM9LGEGcQRKTsaeGwYHe4MS2P7iokyPkGe5pa23cgiMVf4Oa+ t0sT0ghpuoHwzbfiBrOFcGB5xnSsrGnwAMvPKZgnYaFXIzcTAHQ1+mx5oBFRuZYxpF EkpYpRLLOkhVA== From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: William Dean , Hacash Robot , Marc Zyngier , Sasha Levin , tsbogend@alpha.franken.de, fancer.lancer@gmail.com, tglx@linutronix.de, linux-mips@vger.kernel.org Subject: [PATCH AUTOSEL 5.15 16/45] irqchip/mips-gic: Check the return value of ioremap() in gic_of_init() Date: Sun, 7 Aug 2022 21:35:20 -0400 Message-Id: <20220808013551.315446-16-sashal@kernel.org> X-Mailer: git-send-email 2.35.1 In-Reply-To: <20220808013551.315446-1-sashal@kernel.org> References: <20220808013551.315446-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-mips@vger.kernel.org From: William Dean [ Upstream commit 71349cc85e5930dce78ed87084dee098eba24b59 ] The function ioremap() in gic_of_init() can fail, so its return value should be checked. Reported-by: Hacash Robot Signed-off-by: William Dean Signed-off-by: Marc Zyngier Link: https://lore.kernel.org/r/20220723100128.2964304-1-williamsukatube@163.com Signed-off-by: Sasha Levin --- drivers/irqchip/irq-mips-gic.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/irqchip/irq-mips-gic.c b/drivers/irqchip/irq-mips-gic.c index f03f47ffea1e..d815285f1efe 100644 --- a/drivers/irqchip/irq-mips-gic.c +++ b/drivers/irqchip/irq-mips-gic.c @@ -767,6 +767,10 @@ static int __init gic_of_init(struct device_node *node, } mips_gic_base = ioremap(gic_base, gic_len); + if (!mips_gic_base) { + pr_err("Failed to ioremap gic_base\n"); + return -ENOMEM; + } gicconfig = read_gic_config(); gic_shared_intrs = gicconfig & GIC_CONFIG_NUMINTERRUPTS; -- 2.35.1