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=ham 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 33CC0C433FE for ; Mon, 20 Sep 2021 17:40:18 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 1ADCE6152A for ; Mon, 20 Sep 2021 17:40:18 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1348843AbhITRln (ORCPT ); Mon, 20 Sep 2021 13:41:43 -0400 Received: from mail.kernel.org ([198.145.29.99]:42362 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1352361AbhITRjO (ORCPT ); Mon, 20 Sep 2021 13:39:14 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id B71CB61B54; Mon, 20 Sep 2021 17:07:36 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1632157657; bh=fz1/QylEBCzGHxkqcKKKVK44SfT7RlLM0AJI4IcPicY=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=pgEKk9lBuCaF6zvcS/LW3vLYHfSWndvvFgX7PpI+iCXrTJFQ+VfJTyrU+66YRE42M /SRRup8GqI7Ks0BAWiacl/8Ahld55lUBsqiV3tHWplnkUXP3OvI74DYCdJCwjYYGTu 3LO24YitED0gGFn8C+7BSlN1uDBLg5NAA3vB3IVc= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Sergey Shtylyov , Krzysztof Kozlowski , Wolfram Sang , Sasha Levin Subject: [PATCH 4.19 091/293] i2c: s3c2410: fix IRQ check Date: Mon, 20 Sep 2021 18:40:53 +0200 Message-Id: <20210920163936.380526993@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 d6840a5e370b7ea4fde16ce2caf431bcc87f9a75 ] 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: e0d1ec97853f ("i2c-s3c2410: Change IRQ to be plain integer.") Signed-off-by: Sergey Shtylyov Reviewed-by: Krzysztof Kozlowski Signed-off-by: Wolfram Sang Signed-off-by: Sasha Levin --- drivers/i2c/busses/i2c-s3c2410.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/i2c/busses/i2c-s3c2410.c b/drivers/i2c/busses/i2c-s3c2410.c index d3603e261a84..4c6036920388 100644 --- a/drivers/i2c/busses/i2c-s3c2410.c +++ b/drivers/i2c/busses/i2c-s3c2410.c @@ -1179,7 +1179,7 @@ static int s3c24xx_i2c_probe(struct platform_device *pdev) */ if (!(i2c->quirks & QUIRK_POLL)) { i2c->irq = ret = platform_get_irq(pdev, 0); - if (ret <= 0) { + if (ret < 0) { dev_err(&pdev->dev, "cannot find IRQ\n"); clk_unprepare(i2c->clk); return ret; -- 2.30.2