From patchwork Sun Feb 21 11:19:59 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Hans de Goede X-Patchwork-Id: 385620 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=-16.0 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 autolearn=unavailable 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 98DD3C433E0 for ; Sun, 21 Feb 2021 11:21:55 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 80B0D64EB3 for ; Sun, 21 Feb 2021 11:21:55 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229886AbhBULVy (ORCPT ); Sun, 21 Feb 2021 06:21:54 -0500 Received: from us-smtp-delivery-124.mimecast.com ([63.128.21.124]:58804 "EHLO us-smtp-delivery-124.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229891AbhBULVn (ORCPT ); Sun, 21 Feb 2021 06:21:43 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1613906417; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=Ot+0g9GWkCqpBL6S3yzV/ByKfCVx9uehwlhhtjWHdO0=; b=TIzl0xu7PdvLvR0OOcbMpI7xuR0gPL0sqRAlnSyE7CAMo64wNgaL/O5wC80IJ33kIpsJk4 OtcT9bVnTx/xfIsRbrLd7CaLGoNNuhdodWwiW6DkM8jaN58fYdY2dWWKF0QAsg4fPWJKCN f8VZJumMripU3h8thfEfe9xugGD8SeQ= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-176-aOLDViHJNeuXNNl7k0VdKw-1; Sun, 21 Feb 2021 06:20:15 -0500 X-MC-Unique: aOLDViHJNeuXNNl7k0VdKw-1 Received: from smtp.corp.redhat.com (int-mx05.intmail.prod.int.phx2.redhat.com [10.5.11.15]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 4C5501005501; Sun, 21 Feb 2021 11:20:14 +0000 (UTC) Received: from x1.localdomain (ovpn-112-87.ams2.redhat.com [10.36.112.87]) by smtp.corp.redhat.com (Postfix) with ESMTP id D828D62A24; Sun, 21 Feb 2021 11:20:12 +0000 (UTC) From: Hans de Goede To: Jiri Kosina , Benjamin Tissoires Cc: Hans de Goede , =?utf-8?q?Marek_Beh=C3=BAn?= , linux-input@vger.kernel.org, linux-leds@vger.kernel.org, alsa-devel@alsa-project.org Subject: [PATCH v3 1/7] HID: lenovo: Use brightness_set_blocking callback for setting LEDs brightness Date: Sun, 21 Feb 2021 12:19:59 +0100 Message-Id: <20210221112005.102116-2-hdegoede@redhat.com> In-Reply-To: <20210221112005.102116-1-hdegoede@redhat.com> References: <20210221112005.102116-1-hdegoede@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.15 Precedence: bulk List-ID: X-Mailing-List: linux-input@vger.kernel.org The lenovo_led_brightness_set function may sleep, so we should have the the led_class_dev's brightness_set_blocking callback point to it, rather then the regular brightness_set callback. When toggled through sysfs this is not a problem, but the brightness_set callback may be called from atomic context when using LED-triggers. Fixes: bc04b37ea0ec ("HID: lenovo: Add ThinkPad 10 Ultrabook Keyboard support") Reviewed-by: Marek Behún Signed-off-by: Hans de Goede --- drivers/hid/hid-lenovo.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) diff --git a/drivers/hid/hid-lenovo.c b/drivers/hid/hid-lenovo.c index c6c8e20f3e8d..4dc5e5f932ed 100644 --- a/drivers/hid/hid-lenovo.c +++ b/drivers/hid/hid-lenovo.c @@ -777,7 +777,7 @@ static enum led_brightness lenovo_led_brightness_get( : LED_OFF; } -static void lenovo_led_brightness_set(struct led_classdev *led_cdev, +static int lenovo_led_brightness_set(struct led_classdev *led_cdev, enum led_brightness value) { struct device *dev = led_cdev->dev->parent; @@ -802,6 +802,8 @@ static void lenovo_led_brightness_set(struct led_classdev *led_cdev, lenovo_led_set_tp10ubkbd(hdev, tp10ubkbd_led[led_nr], value); break; } + + return 0; } static int lenovo_register_leds(struct hid_device *hdev) @@ -822,7 +824,7 @@ static int lenovo_register_leds(struct hid_device *hdev) data->led_mute.name = name_mute; data->led_mute.brightness_get = lenovo_led_brightness_get; - data->led_mute.brightness_set = lenovo_led_brightness_set; + data->led_mute.brightness_set_blocking = lenovo_led_brightness_set; data->led_mute.dev = &hdev->dev; ret = led_classdev_register(&hdev->dev, &data->led_mute); if (ret < 0) @@ -830,7 +832,7 @@ static int lenovo_register_leds(struct hid_device *hdev) data->led_micmute.name = name_micm; data->led_micmute.brightness_get = lenovo_led_brightness_get; - data->led_micmute.brightness_set = lenovo_led_brightness_set; + data->led_micmute.brightness_set_blocking = lenovo_led_brightness_set; data->led_micmute.dev = &hdev->dev; ret = led_classdev_register(&hdev->dev, &data->led_micmute); if (ret < 0) {