From patchwork Mon Jul 12 06:10:12 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: 473906 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=-19.4 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, URIBL_BLOCKED, 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 EAA3BC11F78 for ; Mon, 12 Jul 2021 07:19:41 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id CE5FF61107 for ; Mon, 12 Jul 2021 07:19:41 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S241398AbhGLHWW (ORCPT ); Mon, 12 Jul 2021 03:22:22 -0400 Received: from mail.kernel.org ([198.145.29.99]:58882 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1344859AbhGLHVD (ORCPT ); Mon, 12 Jul 2021 03:21:03 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id EA6EA613F4; Mon, 12 Jul 2021 07:18:12 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1626074293; bh=p6poGFJpUbxBpcihCHtfBDIXm0jBqGDkkWIKwaGUD/s=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=ywVxfbUHtiWH8SjsxZFD8UkO54KQjXHQh0KNXFavkbAcWTV5TumEXGhU39uVFv0Ze BhlJ2FctrGMg3IFEwnPKjUV33g2b+LCiALlg6myI5pA6ttDVekPHpCflrnsXHzFAce 8pzf2fAXfj3xjuPjRf7AZaYSNHrA7O9ySd3XCINM= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Alexandru Ardelean , Nuno Sa , Jonathan Cameron , Sasha Levin Subject: [PATCH 5.12 529/700] iio: adis_buffer: do not return ints in irq handlers Date: Mon, 12 Jul 2021 08:10:12 +0200 Message-Id: <20210712061032.809065209@linuxfoundation.org> X-Mailer: git-send-email 2.32.0 In-Reply-To: <20210712060924.797321836@linuxfoundation.org> References: <20210712060924.797321836@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Nuno Sa [ Upstream commit d877539ad8e8fdde9af69887055fec6402be1a13 ] On an IRQ handler we should not return normal error codes as 'irqreturn_t' is expected. Not necessarily stable material as the old check cannot fail, so it's a bug we can not hit. Fixes: ccd2b52f4ac69 ("staging:iio: Add common ADIS library") Reviewed-by: Alexandru Ardelean Signed-off-by: Nuno Sa Link: https://lore.kernel.org/r/20210422101911.135630-2-nuno.sa@analog.com Signed-off-by: Jonathan Cameron Signed-off-by: Sasha Levin --- drivers/iio/imu/adis_buffer.c | 3 --- 1 file changed, 3 deletions(-) diff --git a/drivers/iio/imu/adis_buffer.c b/drivers/iio/imu/adis_buffer.c index ac354321f63a..175af154e443 100644 --- a/drivers/iio/imu/adis_buffer.c +++ b/drivers/iio/imu/adis_buffer.c @@ -129,9 +129,6 @@ static irqreturn_t adis_trigger_handler(int irq, void *p) struct adis *adis = iio_device_get_drvdata(indio_dev); int ret; - if (!adis->buffer) - return -ENOMEM; - if (adis->data->has_paging) { mutex_lock(&adis->state_lock); if (adis->current_page != 0) {