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=-20.2 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, 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 130DAC433F5 for ; Mon, 20 Sep 2021 17:40:27 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id E7FB66152A for ; Mon, 20 Sep 2021 17:40:26 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1348861AbhITRlw (ORCPT ); Mon, 20 Sep 2021 13:41:52 -0400 Received: from mail.kernel.org ([198.145.29.99]:42456 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1352382AbhITRjQ (ORCPT ); Mon, 20 Sep 2021 13:39:16 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 70D566138D; Mon, 20 Sep 2021 17:07:45 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1632157665; bh=YHvBBEJO2TLMAOWyIBpwxVBAY3nEi6MMKL98naqdXc0=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=ABQ3qm8QSRBhjbtDLVfagZ53mXggwwGJ+bQASA+aGs/V2E5h/dXuFhyMVePvMLZst LqKT5TBQkN5qNbX1aFvfJ67GVDF+fSWsKGVbAJOO4H4u+tf/11dOVlTEo6WFQnOiBK T0kAmg1v/cYGUaz1Pki13H1J7BrzXLb1zFKTFTZM= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Sergey Shtylyov , Qii Wang , Wolfram Sang , Sasha Levin Subject: [PATCH 4.19 095/293] i2c: mt65xx: fix IRQ check Date: Mon, 20 Sep 2021 18:40:57 +0200 Message-Id: <20210920163936.518869581@linuxfoundation.org> X-Mailer: git-send-email 2.33.0 In-Reply-To: <20210920163933.258815435@linuxfoundation.org> References: <20210920163933.258815435@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Sergey Shtylyov [ Upstream commit 58fb7c643d346e2364404554f531cfa6a1a3917c ] Iff platform_get_irq() returns 0, the driver's probe() method will return 0 early (as if the method's call was successful). Let's consider IRQ0 valid for simplicity -- devm_request_irq() can always override that decision... Fixes: ce38815d39ea ("I2C: mediatek: Add driver for MediaTek I2C controller") Signed-off-by: Sergey Shtylyov Reviewed-by: Qii Wang Signed-off-by: Wolfram Sang Signed-off-by: Sasha Levin --- drivers/i2c/busses/i2c-mt65xx.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/i2c/busses/i2c-mt65xx.c b/drivers/i2c/busses/i2c-mt65xx.c index 2bb4d20ead32..e09b065a6aff 100644 --- a/drivers/i2c/busses/i2c-mt65xx.c +++ b/drivers/i2c/busses/i2c-mt65xx.c @@ -804,7 +804,7 @@ static int mtk_i2c_probe(struct platform_device *pdev) return PTR_ERR(i2c->pdmabase); irq = platform_get_irq(pdev, 0); - if (irq <= 0) + if (irq < 0) return irq; init_completion(&i2c->msg_complete); -- 2.30.2