From patchwork Mon Aug 2 12:17:40 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tang Bin X-Patchwork-Id: 491195 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=-16.7 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, 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 83751C4338F for ; Mon, 2 Aug 2021 12:26:25 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 6329060249 for ; Mon, 2 Aug 2021 12:26:25 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233567AbhHBM0e (ORCPT ); Mon, 2 Aug 2021 08:26:34 -0400 Received: from cmccmta3.chinamobile.com ([221.176.66.81]:19888 "EHLO cmccmta3.chinamobile.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233498AbhHBM0d (ORCPT ); Mon, 2 Aug 2021 08:26:33 -0400 X-Greylist: delayed 549 seconds by postgrey-1.27 at vger.kernel.org; Mon, 02 Aug 2021 08:26:33 EDT Received: from spf.mail.chinamobile.com (unknown[172.16.121.17]) by rmmx-syy-dmz-app09-12009 (RichMail) with SMTP id 2ee96107e23dbe9-e8925; Mon, 02 Aug 2021 20:17:03 +0800 (CST) X-RM-TRANSID: 2ee96107e23dbe9-e8925 X-RM-TagInfo: emlType=0 X-RM-SPAM-FLAG: 00000000 Received: from localhost.localdomain (unknown[223.112.105.130]) by rmsmtp-syy-appsvr09-12009 (RichMail) with SMTP id 2ee96107e23c18d-e74d0; Mon, 02 Aug 2021 20:17:02 +0800 (CST) X-RM-TRANSID: 2ee96107e23c18d-e74d0 From: Tang Bin To: dmitry.torokhov@gmail.com Cc: linux-input@vger.kernel.org, linux-kernel@vger.kernel.org, Tang Bin Subject: [PATCH] input: cpcap-pwrbutton: Add an error handling Date: Mon, 2 Aug 2021 20:17:40 +0800 Message-Id: <20210802121740.8700-1-tangbin@cmss.chinamobile.com> X-Mailer: git-send-email 2.20.1.windows.1 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-input@vger.kernel.org The function cpcap_power_button_probe() does not perform sufficient error checking after executing platform_get_irq(), thus fix it. Signed-off-by: Tang Bin --- drivers/input/misc/cpcap-pwrbutton.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/input/misc/cpcap-pwrbutton.c b/drivers/input/misc/cpcap-pwrbutton.c index 0abef6321..0a1f2e8b4 100644 --- a/drivers/input/misc/cpcap-pwrbutton.c +++ b/drivers/input/misc/cpcap-pwrbutton.c @@ -57,6 +57,9 @@ static int cpcap_power_button_probe(struct platform_device *pdev) int irq = platform_get_irq(pdev, 0); int err; + if (irq < 0) + return irq; + button = devm_kmalloc(&pdev->dev, sizeof(*button), GFP_KERNEL); if (!button) return -ENOMEM;