From patchwork Fri Oct 14 17:34:21 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Philipp Zabel X-Patchwork-Id: 9377075 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 1349E607FD for ; Fri, 14 Oct 2016 17:34:58 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 058DD2A438 for ; Fri, 14 Oct 2016 17:34:58 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id EE7C32A44C; Fri, 14 Oct 2016 17:34:57 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.9 required=2.0 tests=BAYES_00,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 554E02A438 for ; Fri, 14 Oct 2016 17:34:57 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753706AbcJNRey (ORCPT ); Fri, 14 Oct 2016 13:34:54 -0400 Received: from metis.ext.4.pengutronix.de ([92.198.50.35]:40288 "EHLO metis.ext.4.pengutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754070AbcJNRey (ORCPT ); Fri, 14 Oct 2016 13:34:54 -0400 Received: from paszta.hi.4.pengutronix.de ([10.1.0.120] helo=paszta.pengutronix.de.) by metis.ext.pengutronix.de with esmtp (Exim 4.80) (envelope-from ) id 1bv6Ng-0001mV-9x; Fri, 14 Oct 2016 19:34:52 +0200 From: Philipp Zabel To: linux-media@vger.kernel.org Cc: Steve Longerbeam , Marek Vasut , Hans Verkuil , Gary Bisson , kernel@pengutronix.de, Philipp Zabel Subject: [PATCH v2 01/21] [media] v4l2-async: move code out of v4l2_async_notifier_register into v4l2_async_test_nofity_all Date: Fri, 14 Oct 2016 19:34:21 +0200 Message-Id: <1476466481-24030-2-git-send-email-p.zabel@pengutronix.de> X-Mailer: git-send-email 2.1.4 In-Reply-To: <1476466481-24030-1-git-send-email-p.zabel@pengutronix.de> References: <1476466481-24030-1-git-send-email-p.zabel@pengutronix.de> X-SA-Exim-Connect-IP: 10.1.0.120 X-SA-Exim-Mail-From: p.zabel@pengutronix.de X-SA-Exim-Scanned: No (on metis.ext.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: linux-media@vger.kernel.org Sender: linux-media-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP This will be reused in the following patch to catch already registered, newly added asynchronous subdevices from v4l2_async_register_subdev. Signed-off-by: Philipp Zabel --- Changes since v1: - Add missing v4l2_async_test_notify_all() call. --- drivers/media/v4l2-core/v4l2-async.c | 38 ++++++++++++++++++++++-------------- 1 file changed, 23 insertions(+), 15 deletions(-) diff --git a/drivers/media/v4l2-core/v4l2-async.c b/drivers/media/v4l2-core/v4l2-async.c index 5bada20..1113df4 100644 --- a/drivers/media/v4l2-core/v4l2-async.c +++ b/drivers/media/v4l2-core/v4l2-async.c @@ -134,11 +134,31 @@ static void v4l2_async_cleanup(struct v4l2_subdev *sd) sd->dev = NULL; } +static int v4l2_async_test_notify_all(struct v4l2_async_notifier *notifier) +{ + struct v4l2_subdev *sd, *tmp; + + list_for_each_entry_safe(sd, tmp, &subdev_list, async_list) { + struct v4l2_async_subdev *asd; + int ret; + + asd = v4l2_async_belongs(notifier, sd); + if (!asd) + continue; + + ret = v4l2_async_test_notify(notifier, sd, asd); + if (ret < 0) + return ret; + } + + return 0; +} + int v4l2_async_notifier_register(struct v4l2_device *v4l2_dev, struct v4l2_async_notifier *notifier) { - struct v4l2_subdev *sd, *tmp; struct v4l2_async_subdev *asd; + int ret; int i; if (!notifier->num_subdevs || notifier->num_subdevs > V4L2_MAX_SUBDEVS) @@ -171,23 +191,11 @@ int v4l2_async_notifier_register(struct v4l2_device *v4l2_dev, /* Keep also completed notifiers on the list */ list_add(¬ifier->list, ¬ifier_list); - list_for_each_entry_safe(sd, tmp, &subdev_list, async_list) { - int ret; - - asd = v4l2_async_belongs(notifier, sd); - if (!asd) - continue; - - ret = v4l2_async_test_notify(notifier, sd, asd); - if (ret < 0) { - mutex_unlock(&list_lock); - return ret; - } - } + ret = v4l2_async_test_notify_all(notifier); mutex_unlock(&list_lock); - return 0; + return ret; } EXPORT_SYMBOL(v4l2_async_notifier_register);