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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id A8491C433EF for ; Mon, 18 Apr 2022 13:44:03 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S243350AbiDRNqj (ORCPT ); Mon, 18 Apr 2022 09:46:39 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57262 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S242287AbiDRN1h (ORCPT ); Mon, 18 Apr 2022 09:27:37 -0400 Received: from ams.source.kernel.org (ams.source.kernel.org [IPv6:2604:1380:4601:e00::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 2A1343EB8C; Mon, 18 Apr 2022 05:53:18 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id 52818B80E4E; Mon, 18 Apr 2022 12:53:16 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 754DFC385A1; Mon, 18 Apr 2022 12:53:14 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1650286395; bh=YYBpXRePL8X7DjK5YTHKeCMw035l7zTM2kihcEQdxEA=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=ZeKj9NAFgQ7HyLMMIYe6rsYG18yQNxH2CDJQHKW6+xTXAh1ChmxanTYLMzDz1Ugc2 hf4yJX+Sv4/J0fWV3JWx8FdcaHjaNu3kMAAftHo2beZng7R3loPaNlUZeh/XmV86LQ R1ocVMY9JMMZui6Kd9Di07JtaRR5W78RSq9deQQ8= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Jiasheng Jiang , Lee Jones , Sasha Levin Subject: [PATCH 4.14 120/284] mfd: mc13xxx: Add check for mc13xxx_irq_request Date: Mon, 18 Apr 2022 14:11:41 +0200 Message-Id: <20220418121214.522120160@linuxfoundation.org> X-Mailer: git-send-email 2.35.3 In-Reply-To: <20220418121210.689577360@linuxfoundation.org> References: <20220418121210.689577360@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: Jiasheng Jiang [ Upstream commit e477e51a41cb5d6034f3c5ea85a71ad4613996b9 ] As the potential failure of the devm_request_threaded_irq(), it should be better to check the return value of the mc13xxx_irq_request() and return error if fails. Fixes: 8e00593557c3 ("mfd: Add mc13892 support to mc13xxx") Signed-off-by: Jiasheng Jiang Signed-off-by: Lee Jones Link: https://lore.kernel.org/r/20220224022331.3208275-1-jiasheng@iscas.ac.cn Signed-off-by: Sasha Levin --- drivers/mfd/mc13xxx-core.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/mfd/mc13xxx-core.c b/drivers/mfd/mc13xxx-core.c index 75d52034f89d..5b4faebdcae2 100644 --- a/drivers/mfd/mc13xxx-core.c +++ b/drivers/mfd/mc13xxx-core.c @@ -313,8 +313,10 @@ int mc13xxx_adc_do_conversion(struct mc13xxx *mc13xxx, unsigned int mode, adc1 |= MC13783_ADC1_ATOX; dev_dbg(mc13xxx->dev, "%s: request irq\n", __func__); - mc13xxx_irq_request(mc13xxx, MC13XXX_IRQ_ADCDONE, + ret = mc13xxx_irq_request(mc13xxx, MC13XXX_IRQ_ADCDONE, mc13xxx_handler_adcdone, __func__, &adcdone_data); + if (ret) + goto out; mc13xxx_reg_write(mc13xxx, MC13XXX_ADC0, adc0); mc13xxx_reg_write(mc13xxx, MC13XXX_ADC1, adc1); -- 2.34.1