From patchwork Mon Dec 13 09:30:30 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg Kroah-Hartman X-Patchwork-Id: 524132 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 5D521C433FE for ; Mon, 13 Dec 2021 09:44:11 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235748AbhLMJoF (ORCPT ); Mon, 13 Dec 2021 04:44:05 -0500 Received: from sin.source.kernel.org ([145.40.73.55]:36158 "EHLO sin.source.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235692AbhLMJmP (ORCPT ); Mon, 13 Dec 2021 04:42:15 -0500 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 sin.source.kernel.org (Postfix) with ESMTPS id 3FEBECE0E7C; Mon, 13 Dec 2021 09:42:13 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id E03D0C00446; Mon, 13 Dec 2021 09:42:10 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1639388531; bh=KuizVhzQOX9IAUk1dy4PamTLw9ie4WTpEA56DY+VdFg=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=QVSpyibejdr11mIth4lsL/w97z0KLKSjBF1c4TN6Q0RcGRb+sB2CrOr86myP3Oa9t CAVtBSXSsZFAvZ7L3qs3wG5QxlquXaPQm7C/mmYKoLRGn98tZIHW8SZwxZJE8VO7oq PP1z1uxW1UAn2pVIue2oGVdE6U4ZmTQ6jRRdnP/8= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Lars-Peter Clausen , Stable@vger.kernel.org, Jonathan Cameron Subject: [PATCH 4.19 59/74] iio: stk3310: Dont return error code in interrupt handler Date: Mon, 13 Dec 2021 10:30:30 +0100 Message-Id: <20211213092932.776600804@linuxfoundation.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20211213092930.763200615@linuxfoundation.org> References: <20211213092930.763200615@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Lars-Peter Clausen commit 8e1eeca5afa7ba84d885987165dbdc5decf15413 upstream. Interrupt handlers must return one of the irqreturn_t values. Returning a error code is not supported. The stk3310 event interrupt handler returns an error code when reading the flags register fails. Fix the implementation to always return an irqreturn_t value. Fixes: 3dd477acbdd1 ("iio: light: Add threshold interrupt support for STK3310") Signed-off-by: Lars-Peter Clausen Link: https://lore.kernel.org/r/20211024171251.22896-3-lars@metafoo.de Cc: Signed-off-by: Jonathan Cameron Signed-off-by: Greg Kroah-Hartman --- drivers/iio/light/stk3310.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) --- a/drivers/iio/light/stk3310.c +++ b/drivers/iio/light/stk3310.c @@ -545,9 +545,8 @@ static irqreturn_t stk3310_irq_event_han mutex_lock(&data->lock); ret = regmap_field_read(data->reg_flag_nf, &dir); if (ret < 0) { - dev_err(&data->client->dev, "register read failed\n"); - mutex_unlock(&data->lock); - return ret; + dev_err(&data->client->dev, "register read failed: %d\n", ret); + goto out; } event = IIO_UNMOD_EVENT_CODE(IIO_PROXIMITY, 1, IIO_EV_TYPE_THRESH, @@ -559,6 +558,7 @@ static irqreturn_t stk3310_irq_event_han ret = regmap_field_write(data->reg_flag_psint, 0); if (ret < 0) dev_err(&data->client->dev, "failed to reset interrupts\n"); +out: mutex_unlock(&data->lock); return IRQ_HANDLED;