From patchwork Mon Jan 23 12:51:57 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hans de Goede X-Patchwork-Id: 13112131 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 378B7C05027 for ; Mon, 23 Jan 2023 12:55:27 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232035AbjAWMz0 (ORCPT ); Mon, 23 Jan 2023 07:55:26 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:56838 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231807AbjAWMzZ (ORCPT ); Mon, 23 Jan 2023 07:55:25 -0500 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.129.124]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id EAC3F14E9F for ; Mon, 23 Jan 2023 04:54:41 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1674478481; 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=UtOK/HWNZH+qL5ZXF+cCXTlQOh44nlku8hLbqoDJs4U=; b=JhViXGEuX3jBpG1FCvBFt9e2B1irSiUPbNMW2DKWfPNkpxf/f7J8t6QWPZj3sjEWWDK1gt hmxSc+RBKkgzTKJpWoZjZyAdtz8LIOBtW2xv6v76jIMNOtARFKErW+Qe7meghDZGwXlBnP A1G0MOZ0dyrUDkbh5a8YxRXDLG5oV44= Received: from mimecast-mx02.redhat.com (mimecast-mx02.redhat.com [66.187.233.88]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-119-gnPVpXcyMHKmqk_mYeCRYw-1; Mon, 23 Jan 2023 07:54:35 -0500 X-MC-Unique: gnPVpXcyMHKmqk_mYeCRYw-1 Received: from smtp.corp.redhat.com (int-mx08.intmail.prod.int.rdu2.redhat.com [10.11.54.8]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 38B6785A588; Mon, 23 Jan 2023 12:54:35 +0000 (UTC) Received: from x1.localdomain.com (unknown [10.39.194.13]) by smtp.corp.redhat.com (Postfix) with ESMTP id 15DA3C15BA0; Mon, 23 Jan 2023 12:54:32 +0000 (UTC) From: Hans de Goede To: Mauro Carvalho Chehab , Sakari Ailus Cc: Hans de Goede , Tsuchiya Yuto , Andy Shevchenko , Yury Luneff , Nable , andrey.i.trufanov@gmail.com, Fabio Aiuto , linux-media@vger.kernel.org, linux-staging@lists.linux.dev Subject: [PATCH 49/57] media: atomisp: ov2680: Use devm_kzalloc() for sensor data struct Date: Mon, 23 Jan 2023 13:51:57 +0100 Message-Id: <20230123125205.622152-50-hdegoede@redhat.com> In-Reply-To: <20230123125205.622152-1-hdegoede@redhat.com> References: <20230123125205.622152-1-hdegoede@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.1 on 10.11.54.8 Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org Use devm_kzalloc() to allocate the sensor data struct. It is always free-ed as the last step of probe-error-exit or remove, so it can be devm-managed. This will make unwinding things easier when support is added to the ov2680 code to use standard GPIO APIs instead of the custom atomisp_gmin code. This also allows dropping the out_free label and use direct return on errors. This may seem like a functional change since the out_free label also did a v4l2_device_unregister_subdev() but at the 2 changed returns the device is not registered yet, so that always is a no-op and can be dropped. Signed-off-by: Hans de Goede Reviewed-by: Andy Shevchenko --- .../staging/media/atomisp/i2c/atomisp-ov2680.c | 16 ++++------------ 1 file changed, 4 insertions(+), 12 deletions(-) diff --git a/drivers/staging/media/atomisp/i2c/atomisp-ov2680.c b/drivers/staging/media/atomisp/i2c/atomisp-ov2680.c index 5f26508a1e5a..2b4673092b6a 100644 --- a/drivers/staging/media/atomisp/i2c/atomisp-ov2680.c +++ b/drivers/staging/media/atomisp/i2c/atomisp-ov2680.c @@ -780,7 +780,6 @@ static void ov2680_remove(struct i2c_client *client) media_entity_cleanup(&sensor->sd.entity); v4l2_ctrl_handler_free(&sensor->ctrls.handler); pm_runtime_disable(&client->dev); - kfree(sensor); } static int ov2680_probe(struct i2c_client *client) @@ -789,7 +788,7 @@ static int ov2680_probe(struct i2c_client *client) int ret; void *pdata; - sensor = kzalloc(sizeof(*sensor), GFP_KERNEL); + sensor = devm_kzalloc(&client->dev, sizeof(*sensor), GFP_KERNEL); if (!sensor) return -ENOMEM; @@ -801,10 +800,8 @@ static int ov2680_probe(struct i2c_client *client) pdata = gmin_camera_platform_data(&sensor->sd, ATOMISP_INPUT_FORMAT_RAW_10, atomisp_bayer_order_bggr); - if (!pdata) { - ret = -EINVAL; - goto out_free; - } + if (!pdata) + return -EINVAL; pm_runtime_set_suspended(&client->dev); pm_runtime_enable(&client->dev); @@ -813,7 +810,7 @@ static int ov2680_probe(struct i2c_client *client) ret = ov2680_s_config(&sensor->sd, client->irq, pdata); if (ret) - goto out_free; + return ret; sensor->sd.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE; sensor->pad.flags = MEDIA_PAD_FL_SOURCE; @@ -840,11 +837,6 @@ static int ov2680_probe(struct i2c_client *client) } return 0; -out_free: - dev_dbg(&client->dev, "+++ out free\n"); - v4l2_device_unregister_subdev(&sensor->sd); - kfree(sensor); - return ret; } static int ov2680_suspend(struct device *dev)