From patchwork Mon Dec 13 09:30:12 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: 524211 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 E3931C433FE for ; Mon, 13 Dec 2021 09:34:16 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232512AbhLMJeQ (ORCPT ); Mon, 13 Dec 2021 04:34:16 -0500 Received: from sin.source.kernel.org ([145.40.73.55]:58488 "EHLO sin.source.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234027AbhLMJdu (ORCPT ); Mon, 13 Dec 2021 04:33:50 -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 76BBACE0E7D; Mon, 13 Dec 2021 09:33:48 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 21003C00446; Mon, 13 Dec 2021 09:33:45 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1639388026; bh=XCgCkaNWnfUAgYep8/K9yEqrJyH2P5wqGKVpAkqeNKE=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=sE7E0ofkQbwObfGxCD/KGW9BA71tX1GLIBLVrbVDpEXYW+fBMMEv0XbH99EfKBYPx SmxVhQJK0mcZeUpheOMHbukNktQktzba6OUUbbDdl3vov/8Sr+qNqqfL2RnUfqGJJU p2nhK9a/DbqJmobpjdDyN0A4wl6bL4gkEqhkAdjQ= 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 4.4 34/37] iio: itg3200: Call iio_trigger_notify_done() on error Date: Mon, 13 Dec 2021 10:30:12 +0100 Message-Id: <20211213092926.500225019@linuxfoundation.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20211213092925.380184671@linuxfoundation.org> References: <20211213092925.380184671@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 67fe29583e72b2103abb661bb58036e3c1f00277 upstream. IIO trigger handlers must call iio_trigger_notify_done() when done. This must be done even when an error occurred. Otherwise the trigger will be seen as busy indefinitely and the trigger handler will never be called again. The itg3200 driver neglects to call iio_trigger_notify_done() when there is an error reading the gyro data. Fix this by making sure that iio_trigger_notify_done() is included in the error exit path. Fixes: 9dbf091da080 ("iio: gyro: Add itg3200") Signed-off-by: Lars-Peter Clausen Link: https://lore.kernel.org/r/20211101144055.13858-1-lars@metafoo.de Cc: Signed-off-by: Jonathan Cameron Signed-off-by: Greg Kroah-Hartman --- drivers/iio/gyro/itg3200_buffer.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/iio/gyro/itg3200_buffer.c +++ b/drivers/iio/gyro/itg3200_buffer.c @@ -64,9 +64,9 @@ static irqreturn_t itg3200_trigger_handl iio_push_to_buffers_with_timestamp(indio_dev, &scan, pf->timestamp); +error_ret: iio_trigger_notify_done(indio_dev->trig); -error_ret: return IRQ_HANDLED; }