Received-SPF: pass (google.com: domain of linux-kernel+bounces-114998-linux.lists.archive=gmail.com@vger.kernel.org designates 2604:1380:45d1:ec00::1 as permitted sender) client-ip=2604:1380:45d1:ec00::1;
From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org,
	stable@vger.kernel.org
Cc: Nikita Zhandarovich <n.zhandarovich@fintech.ru>,
	Mauro Carvalho Chehab <mchehab@kernel.org>,
	Hans Verkuil <hverkuil-cisco@xs4all.nl>,
	Sasha Levin <sashal@kernel.org>
Subject: [PATCH 5.10 132/238] media: em28xx: annotate unchecked call to media_device_register()
Date: Sun, 24 Mar 2024 19:38:40 -0400
Message-ID: <20240324234027.1354210-133-sashal@kernel.org>
In-Reply-To: <20240324234027.1354210-1-sashal@kernel.org>
References: <20240324234027.1354210-1-sashal@kernel.org>
Precedence: bulk
MIME-Version: 1.0
Content-Transfer-Encoding: 8bit

From: Nikita Zhandarovich <n.zhandarovich@fintech.ru>

[ Upstream commit fd61d77a3d28444b2635f0c8b5a2ecd6a4d94026 ]

Static analyzers generate alerts for an unchecked call to
`media_device_register()`. However, in this case, the device will work
reliably without the media controller API.

Add a comment above the call to prevent future unnecessary changes.

Suggested-by: Mauro Carvalho Chehab <mchehab@kernel.org>
Fixes: 37ecc7b1278f ("[media] em28xx: add media controller support")
Signed-off-by: Nikita Zhandarovich <n.zhandarovich@fintech.ru>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/media/usb/em28xx/em28xx-cards.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/media/usb/em28xx/em28xx-cards.c b/drivers/media/usb/em28xx/em28xx-cards.c
index 26408a972b443..5deee83132c62 100644
--- a/drivers/media/usb/em28xx/em28xx-cards.c
+++ b/drivers/media/usb/em28xx/em28xx-cards.c
@@ -4049,6 +4049,10 @@ static int em28xx_usb_probe(struct usb_interface *intf,
 	 * topology will likely change after the load of the em28xx subdrivers.
 	 */
 #ifdef CONFIG_MEDIA_CONTROLLER
+	/*
+	 * No need to check the return value, the device will still be
+	 * usable without media controller API.
+	 */
 	retval = media_device_register(dev->media_dev);
 #endif
 
-- 
2.43.0