From patchwork Thu Aug 18 18:42:38 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hans de Goede X-Patchwork-Id: 12947623 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 gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 6031AC00140 for ; Thu, 18 Aug 2022 18:44:49 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 6589810E912; Thu, 18 Aug 2022 18:44:12 +0000 (UTC) Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.129.124]) by gabe.freedesktop.org (Postfix) with ESMTPS id 9021410E75E for ; Thu, 18 Aug 2022 18:43:50 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1660848229; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=c7cbLrhybeXhTd6E0KCP79PiLRPmdaDHe09WAOWHr3I=; b=DrwU0HcWKrxAa1uV9AWAf1xzZ62jh/QNKK3YVqQ3B45pj/ac9D36UI6CO1kfYb58yeBK3J 4GByRUet+cUb+8BkrcXErdXtVwludvy/XdJV6aA5uxDWPgOgnlmd4Gkf4L4GnhZ34BZXzt mbaUxTHCAit3vgdw4/E4K4tp7DBZGA0= Received: from mimecast-mx02.redhat.com (mx3-rdu2.redhat.com [66.187.233.73]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-259-iWkuLWGsMGaCrmdhUUlncA-1; Thu, 18 Aug 2022 14:43:44 -0400 X-MC-Unique: iWkuLWGsMGaCrmdhUUlncA-1 Received: from smtp.corp.redhat.com (int-mx10.intmail.prod.int.rdu2.redhat.com [10.11.54.10]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 0813329AA3B6; Thu, 18 Aug 2022 18:43:43 +0000 (UTC) Received: from localhost.localdomain (unknown [10.39.192.20]) by smtp.corp.redhat.com (Postfix) with ESMTP id 19807403340; Thu, 18 Aug 2022 18:43:38 +0000 (UTC) From: Hans de Goede To: Ben Skeggs , Karol Herbst , Lyude , Daniel Dadap , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , Jani Nikula , Joonas Lahtinen , Rodrigo Vivi , Tvrtko Ursulin , Alex Deucher , =?utf-8?q?Christian_K=C3=B6nig?= , Pan@freedesktop.org, Xinhui , "Rafael J . Wysocki" , Mika Westerberg , Lukas Wunner , Mark Gross , Andy Shevchenko Date: Thu, 18 Aug 2022 20:42:38 +0200 Message-Id: <20220818184302.10051-8-hdegoede@redhat.com> In-Reply-To: <20220818184302.10051-1-hdegoede@redhat.com> References: <20220818184302.10051-1-hdegoede@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.85 on 10.11.54.10 Subject: [Intel-gfx] [PATCH v3 07/31] ACPI: video: Remove acpi_video_bus from list before tearing it down X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-acpi@vger.kernel.org, David Airlie , nouveau@lists.freedesktop.org, intel-gfx , "Rafael J . Wysocki" , dri-devel@lists.freedesktop.org, platform-driver-x86@vger.kernel.org, amd-gfx@lists.freedesktop.org, Daniel Vetter , Len Brown Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" Move the list_del removing an acpi_video_bus from video_bus_head on teardown to before the teardown is done, to avoid code iterating over the video_bus_head list seeing acpi_video_bus objects on there which are (partly) torn down already. Acked-by: Rafael J. Wysocki Signed-off-by: Hans de Goede --- drivers/acpi/acpi_video.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/acpi/acpi_video.c b/drivers/acpi/acpi_video.c index 5cbe2196176d..cde8ffa9f0b8 100644 --- a/drivers/acpi/acpi_video.c +++ b/drivers/acpi/acpi_video.c @@ -2111,14 +2111,14 @@ static int acpi_video_bus_remove(struct acpi_device *device) video = acpi_driver_data(device); - acpi_video_bus_remove_notify_handler(video); - acpi_video_bus_unregister_backlight(video); - acpi_video_bus_put_devices(video); - mutex_lock(&video_list_lock); list_del(&video->entry); mutex_unlock(&video_list_lock); + acpi_video_bus_remove_notify_handler(video); + acpi_video_bus_unregister_backlight(video); + acpi_video_bus_put_devices(video); + kfree(video->attached_array); kfree(video);