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=-19.4 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable 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 6287EC07E9C for ; Sat, 10 Jul 2021 02:24:45 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 4CD9561414 for ; Sat, 10 Jul 2021 02:24:45 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232805AbhGJC12 (ORCPT ); Fri, 9 Jul 2021 22:27:28 -0400 Received: from mail.kernel.org ([198.145.29.99]:42926 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233155AbhGJC0N (ORCPT ); Fri, 9 Jul 2021 22:26:13 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 8004F60BD3; Sat, 10 Jul 2021 02:23:21 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1625883802; bh=kkzpB9mHtqsTDc8yH38cr0ZSYOzrQ8stVA5/0TR9GAE=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=FzwnGxBVsShYlWQZBXRBMwbpGwMlBCgqQAooSHy3GHgOUznvD0QzRteLCLMpqXH4S P166+hITXQOe7ZXSdNyaQ3ePznMSAy//BipHl2e2tcjND2JWjHrYUu+SZTQTxW8H7T 3GU7kKzlonuwAuQdNopn5C0lkgktot4EX6SWeMjDgdJu34A9LElwyNZsxy4Ut/0JqP U+r4pIGWEvdJQ6AuZER4gd7QXjwlvr3PMVElZbRLKwV9BuMSh9zagqeV0IRtHaSo4k /SN3iLTYIOj9ZKGwprhNGMrT2NnQqGXm/611UHu3T6ISbITZSQmAxSnCbhMkKmxdGZ CkQVfI+Zb1wNg== From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Srinivas Neeli , Bartosz Golaszewski , Sasha Levin , linux-gpio@vger.kernel.org, linux-arm-kernel@lists.infradead.org Subject: [PATCH AUTOSEL 5.12 065/104] gpio: zynq: Check return value of irq_get_irq_data Date: Fri, 9 Jul 2021 22:21:17 -0400 Message-Id: <20210710022156.3168825-65-sashal@kernel.org> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20210710022156.3168825-1-sashal@kernel.org> References: <20210710022156.3168825-1-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-kernel@vger.kernel.org From: Srinivas Neeli [ Upstream commit 35d7b72a632bc7afb15356f44005554af8697904 ] In two different instances the return value of "irq_get_irq_data" API was neither captured nor checked. Fixed it by capturing the return value and then checking for any error. Addresses-Coverity: "returned_null" Signed-off-by: Srinivas Neeli Signed-off-by: Bartosz Golaszewski Signed-off-by: Sasha Levin --- drivers/gpio/gpio-zynq.c | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/drivers/gpio/gpio-zynq.c b/drivers/gpio/gpio-zynq.c index fb8684d70fe3..c288a7502de2 100644 --- a/drivers/gpio/gpio-zynq.c +++ b/drivers/gpio/gpio-zynq.c @@ -736,6 +736,11 @@ static int __maybe_unused zynq_gpio_suspend(struct device *dev) struct zynq_gpio *gpio = dev_get_drvdata(dev); struct irq_data *data = irq_get_irq_data(gpio->irq); + if (!data) { + dev_err(dev, "irq_get_irq_data() failed\n"); + return -EINVAL; + } + if (!device_may_wakeup(dev)) disable_irq(gpio->irq); @@ -753,6 +758,11 @@ static int __maybe_unused zynq_gpio_resume(struct device *dev) struct irq_data *data = irq_get_irq_data(gpio->irq); int ret; + if (!data) { + dev_err(dev, "irq_get_irq_data() failed\n"); + return -EINVAL; + } + if (!device_may_wakeup(dev)) enable_irq(gpio->irq); -- 2.30.2