[5/9] media: uvcvideo: Add a uvc_status guard

Message ID	20241126-uvc-granpower-ng-v1-5-6312bf26549c@chromium.org
State	New
Headers	show Received: from mail-oo1-f48.google.com (mail-oo1-f48.google.com [209.85.161.48]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 3DF051DACBF for <linux-media@vger.kernel.org>; Tue, 26 Nov 2024 16:20:30 +0000 (UTC) From: Ricardo Ribalda <ribalda@chromium.org> Date: Tue, 26 Nov 2024 16:18:55 +0000 Subject: [PATCH 5/9] media: uvcvideo: Add a uvc_status guard Precedence: bulk MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20241126-uvc-granpower-ng-v1-5-6312bf26549c@chromium.org> References: <20241126-uvc-granpower-ng-v1-0-6312bf26549c@chromium.org> In-Reply-To: <20241126-uvc-granpower-ng-v1-0-6312bf26549c@chromium.org> To: Laurent Pinchart <laurent.pinchart@ideasonboard.com>, Hans de Goede <hdegoede@redhat.com>, Mauro Carvalho Chehab <mchehab@kernel.org>, Guennadi Liakhovetski <guennadi.liakhovetski@intel.com> Cc: linux-media@vger.kernel.org, linux-kernel@vger.kernel.org, Mauro Carvalho Chehab <mchehab+samsung@kernel.org>, Ricardo Ribalda <ribalda@chromium.org>
Series	media: uvcvideo: Implement Granular Power Saving \| expand [0/9] media: uvcvideo: Implement Granular Power Saving [1/9] media: uvcvideo: Do not set an async control owned by other fh [2/9] media: uvcvideo: Remove dangling pointers [3/9] media: uvcvideo: Keep streaming state in the file handle [4/9] media: uvcvideo: Move usb_autopm_(get\|put)_interface to status_get [5/9] media: uvcvideo: Add a uvc_status guard [6/9] media: uvcvideo: Increase/decrease the PM counter per IOCTL [7/9] media: uvcvideo: Make power management granular [8/9] media: uvcvideo: Do not turn on the camera for some ioctls [9/9] media: uvcvideo: Remove duplicated cap/out code

Message ID

20241126-uvc-granpower-ng-v1-5-6312bf26549c@chromium.org

State

New

Headers

From: Ricardo Ribalda <ribalda@chromium.org>
Date: Tue, 26 Nov 2024 16:18:55 +0000
Subject: [PATCH 5/9] media: uvcvideo: Add a uvc_status guard
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Message-Id: <20241126-uvc-granpower-ng-v1-5-6312bf26549c@chromium.org>
References: <20241126-uvc-granpower-ng-v1-0-6312bf26549c@chromium.org>
In-Reply-To: <20241126-uvc-granpower-ng-v1-0-6312bf26549c@chromium.org>
To: Laurent Pinchart <laurent.pinchart@ideasonboard.com>,
 Hans de Goede <hdegoede@redhat.com>,
 Mauro Carvalho Chehab <mchehab@kernel.org>,
 Guennadi Liakhovetski <guennadi.liakhovetski@intel.com>
Cc: linux-media@vger.kernel.org, linux-kernel@vger.kernel.org,
 Mauro Carvalho Chehab <mchehab+samsung@kernel.org>,
 Ricardo Ribalda <ribalda@chromium.org>

Series

media: uvcvideo: Implement Granular Power Saving | expand

Commit Message

Ricardo Ribalda Nov. 26, 2024, 4:18 p.m. UTC

It helps will help will the error handling of PM functions.

Signed-off-by: Ricardo Ribalda <ribalda@chromium.org>
---
 drivers/media/usb/uvc/uvcvideo.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/media/usb/uvc/uvcvideo.h b/drivers/media/usb/uvc/uvcvideo.h
index b63194a9c64e..c38ddd10307c 100644
--- a/drivers/media/usb/uvc/uvcvideo.h
+++ b/drivers/media/usb/uvc/uvcvideo.h
@@ -759,6 +759,8 @@  void uvc_status_suspend(struct uvc_device *dev);
 int uvc_status_get(struct uvc_device *dev);
 void uvc_status_put(struct uvc_device *dev);
 
+DEFINE_GUARD(uvc_status, struct uvc_device *, uvc_status_get(_T), uvc_status_put(_T))
+
 /* Controls */
 extern const struct v4l2_subscribed_event_ops uvc_ctrl_sub_ev_ops;

[5/9] media: uvcvideo: Add a uvc_status guard

Commit Message

Patch