From patchwork Sun Oct 9 06:44:29 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jianmin Lv X-Patchwork-Id: 613510 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 9B914C433F5 for ; Sun, 9 Oct 2022 06:45:06 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229948AbiJIGpE (ORCPT ); Sun, 9 Oct 2022 02:45:04 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:58764 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229928AbiJIGoy (ORCPT ); Sun, 9 Oct 2022 02:44:54 -0400 Received: from loongson.cn (mail.loongson.cn [114.242.206.163]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id 71C1665C1; Sat, 8 Oct 2022 23:44:51 -0700 (PDT) Received: from loongson-pc.loongson.cn (unknown [10.20.42.32]) by localhost.localdomain (Coremail) with SMTP id AQAAf8DxX+DPbUJjsykpAA--.19711S4; Sun, 09 Oct 2022 14:44:31 +0800 (CST) From: Jianmin Lv To: Thomas Gleixner , Marc Zyngier Cc: linux-kernel@vger.kernel.org, loongarch@lists.linux.dev, Jiaxun Yang , Huacai Chen , Bjorn Helgaas , Len Brown , rafael@kernel.org, linux-pci@vger.kernel.org, linux-acpi@vger.kernel.org Subject: [PATCH V3 2/4] irqchip/loongson-pch-pic: fix translate callback for DT path Date: Sun, 9 Oct 2022 14:44:29 +0800 Message-Id: <20221009064431.18839-3-lvjianmin@loongson.cn> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20221009064431.18839-1-lvjianmin@loongson.cn> References: <20221009064431.18839-1-lvjianmin@loongson.cn> MIME-Version: 1.0 X-CM-TRANSID: AQAAf8DxX+DPbUJjsykpAA--.19711S4 X-Coremail-Antispam: 1UD129KBjvdXoW7Xr15GF4rZr43JFyxZF1rCrg_yoWktrg_uF 1SqFn3Kw17Zr1Iq3y8Kr4rXFy7ta4Du3WvkFs5Aay5WayUXayxAr1Svw4fJa9rGFWUAF1f C395ur1xZF4I9jkaLaAFLSUrUUUUUb8apTn2vfkv8UJUUUU8Yxn0WfASr-VFAUDa7-sFnT 9fnUUIcSsGvfJTRUUUba8Fc2x0x2IEx4CE42xK8VAvwI8IcIk0rVWrJVCq3wAFIxvE14AK wVWUJVWUGwA2ocxC64kIII0Yj41l84x0c7CEw4AK67xGY2AK021l84ACjcxK6xIIjxv20x vE14v26F1j6w1UM28EF7xvwVC0I7IYx2IY6xkF7I0E14v26F4j6r4UJwA2z4x0Y4vEx4A2 jsIE14v26F4UJVW0owA2z4x0Y4vEx4A2jsIEc7CjxVAFwI0_GcCE3s1le2I262IYc4CY6c 8Ij28IcVAaY2xG8wAqx4xG64xvF2IEw4CE5I8CrVC2j2WlYx0E2Ix0cI8IcVAFwI0_Jr0_ Jr4lYx0Ex4A2jsIE14v26r1j6r4UMcvjeVCFs4IE7xkEbVWUJVW8JwACjcxG0xvY0x0EwI xGrwACjI8F5VA0II8E6IAqYI8I648v4I1lFIxGxcIEc7CjxVA2Y2ka0xkIwI1lc2xSY4AK 6svPMxAIw28IcxkI7VAKI48JMxAIw28IcVCjz48v1sIEY20_XrWUJr1UMxC20s026xCaFV Cjc4AY6r1j6r4UMI8I3I0E5I8CrVAFwI0_Jr0_Jr4lx2IqxVCjr7xvwVAFwI0_JrI_JrWl x4CE17CEb7AF67AKxVWUtVW8ZwCIc40Y0x0EwIxGrwCI42IY6xIIjxv20xvE14v26r1j6r 1xMIIF0xvE2Ix0cI8IcVCY1x0267AKxVW8JVWxJwCI42IY6xAIw20EY4v20xvaj40_Jr0_ JF4lIxAIcVC2z280aVAFwI0_Jr0_Gr1lIxAIcVC2z280aVCY1x0267AKxVW8JVW8JrUvcS sGvfC2KfnxnUUI43ZEXa7VUbXdbUUUUUU== X-CM-SenderInfo: 5oymxthqpl0qxorr0wxvrqhubq/ Precedence: bulk List-ID: X-Mailing-List: linux-acpi@vger.kernel.org In DT path of translate callback, if fwspec->param_count==1 and of_node is non-null, fwspec->param[1] will be accessed, which is introduced from previous commit bcdd75c596c8 (irqchip/loongson-pch-pic: Add ACPI init support). Before the patch, for non-null of_node, translate callback (use irq_domain_translate_twocell) will return -EINVAL if fwspec->param_count < 2, so the check in the patch is added. Fixes: bcdd75c596c8 ("irqchip/loongson-pch-pic: Add ACPI init support") Signed-off-by: Jianmin Lv --- drivers/irqchip/irq-loongson-pch-pic.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/irqchip/irq-loongson-pch-pic.c b/drivers/irqchip/irq-loongson-pch-pic.c index c01b9c257005..03493cda65a3 100644 --- a/drivers/irqchip/irq-loongson-pch-pic.c +++ b/drivers/irqchip/irq-loongson-pch-pic.c @@ -159,6 +159,9 @@ static int pch_pic_domain_translate(struct irq_domain *d, return -EINVAL; if (of_node) { + if (fwspec->param_count < 2) + return -EINVAL; + *hwirq = fwspec->param[0] + priv->ht_vec_base; *type = fwspec->param[1] & IRQ_TYPE_SENSE_MASK; } else {