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Mon, 17 Sep 2018 03:05:47 +0000 Received: from CY4PR21MB0776.namprd21.prod.outlook.com ([fe80::54e2:88e0:b622:b36]) by CY4PR21MB0776.namprd21.prod.outlook.com ([fe80::54e2:88e0:b622:b36%5]) with mapi id 15.20.1185.003; Mon, 17 Sep 2018 03:05:47 +0000 From: Sasha Levin To: "stable@vger.kernel.org" , "linux-kernel@vger.kernel.org" CC: Akinobu Mita , Hans Verkuil , Sakari Ailus , Mauro Carvalho Chehab , Sasha Levin Subject: [PATCH AUTOSEL 4.9 32/57] media: s3c-camif: ignore -ENOIOCTLCMD from v4l2_subdev_call for s_power Thread-Topic: [PATCH AUTOSEL 4.9 32/57] media: s3c-camif: ignore -ENOIOCTLCMD from v4l2_subdev_call for s_power Thread-Index: AQHUTjMW82gASfsyK0K+6easIKK9Kg== Date: Mon, 17 Sep 2018 03:04:02 +0000 Message-ID: <20180917030340.378-32-alexander.levin@microsoft.com> References: <20180917030340.378-1-alexander.levin@microsoft.com> In-Reply-To: <20180917030340.378-1-alexander.levin@microsoft.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [52.168.54.252] x-ms-publictraffictype: Email x-microsoft-exchange-diagnostics: 1;CY4PR21MB0757;6:Wgf0YtcX7dS7Apt5xpUiUcjhvoL2sZ03AxREOLiJIO5EygosFmB6DfcIvxvle1Di+4dtwt8kQvoCeWh52Xb/zdeAZbe/wKifVzkyg0cQ2zEZm9xCdXkB5fAIuH/UdVsEiftxyLLC/Ns7wNqep9WJDyshYn7MfVs4BgzZA9cgmPxDA2WgFLwyycXHzsyHUdo3pGhPy7lny0y9N4sVJebXgqOWJTrq8ouQC7pK6NFFMXgrOIuVWR9JVKEYFIhsXKYgRa9UD1UsZLuoFXtvjh1xvotGg48q7qL+DR1rQpUNeNWbQPW/1KyxOwkUQ1qJY6FGAPETbhB6Y5SI5y6kN0GknuFHYLjuqjtA6uf1wNOdSrezGo0fr/0a4QrEON4lloJ66r/6RmWyF+moG4rjCEiL98Or0+zM96xilzJ1foQhrRh38vfkqD7gpC02lPk3juo9kdFBaK5VlqN4Y2ZoeCc93w==;5:N0dN/Q61B5zY33Ef0qVsBJEi2lRtHQ1Ik56iMSNqSSiAyZFRwa0Dz1O4FlQerOGilqCbilAMEtUYzaNSn51MUROe9h+qrcoJBTixKU3rLYYwGMMjMf+DBLT8seK/bA/1tB9a/s/uzpQdTap/8qOalfTIk6Xw3V8wC68SUQK0Nh0=;7:Q2Z/K9k2hNswKGfOcFj7BHE8IvMS4XMVfErk9Z2Q9ucXS8ucIznveXFYnwUkAyiuiDd0WtSGeSBHUQOp2F7HJgL2nVKKHcNdELBlHNm//h+Mn74J46dt549JOYR9q684fw087VokcqX1FE6DwbTon/qaEul9fZCPlCMf2djzg3YE/Z03gNjl6s/mKI0w/5wC71QNC6jo/LXzSVBpjFPbStaN9p8Mv6pSNqDml0fDwN5B7+hnZQWA+awuZaxYR+pz x-ms-office365-filtering-correlation-id: fd4e887f-7653-4d5a-27d4-08d61c4a777f x-ms-office365-filtering-ht: Tenant x-microsoft-antispam: BCL:0;PCL:0;RULEID:(7020095)(4652040)(8989137)(4534165)(4627221)(201703031133081)(201702281549075)(8990107)(5600074)(711020)(4618075)(2017052603328)(7193020);SRVR:CY4PR21MB0757; 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received-spf: None (protection.outlook.com: microsoft.com does not designate permitted sender hosts) authentication-results: spf=none (sender IP is ) smtp.mailfrom=Alexander.Levin@microsoft.com; x-microsoft-antispam-message-info: ntG2CnlU5PoC4eFTCAwjuHog0aMUbOVNoHDTmnXpgK54KI/73QFpgvu+2ATn1zo96SSJE2t4Ch+dIo1qIfbynOmRFVm/NlFbKcgW6Ce8MDSbwqS+Phv3m5uexBmThWp/IQ90Sdx0jX/U4kd7IdVM/+aiv9A1kd+xaIWDncf/mKtObkwoBSyA67DwE+qBYt92DDPNYLMYp0ofkkRksVyFesLCRCwQZ9bD6iLb1D5I+1JgDppM1lwe7+2e9N7IjLbn6OPgUDj9esY0kwFp8MfTIDxcr2hyoElWfHD+zVIoneRbeYGB7ID5WgbRBAhNXZRmvzATy0p7Zk/BFds4Og4qOnma79Z1RsnRW+qKMXjbQKs= spamdiagnosticoutput: 1:99 spamdiagnosticmetadata: NSPM Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-OriginatorOrg: microsoft.com X-MS-Exchange-CrossTenant-Network-Message-Id: fd4e887f-7653-4d5a-27d4-08d61c4a777f X-MS-Exchange-CrossTenant-originalarrivaltime: 17 Sep 2018 03:04:02.9147 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 72f988bf-86f1-41af-91ab-2d7cd011db47 X-MS-Exchange-Transport-CrossTenantHeadersStamped: CY4PR21MB0757 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Akinobu Mita [ Upstream commit 30ed2b83343bd1e07884ca7355dac70d25ffc158 ] When the subdevice doesn't provide s_power core ops callback, the v4l2_subdev_call for s_power returns -ENOIOCTLCMD. If the subdevice doesn't have the special handling for its power saving mode, the s_power isn't required. So -ENOIOCTLCMD from the v4l2_subdev_call should be ignored. Cc: Hans Verkuil Signed-off-by: Akinobu Mita Acked-by: Sylwester Nawrocki Signed-off-by: Sakari Ailus Signed-off-by: Mauro Carvalho Chehab Signed-off-by: Sasha Levin --- drivers/media/platform/s3c-camif/camif-capture.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/media/platform/s3c-camif/camif-capture.c b/drivers/med= ia/platform/s3c-camif/camif-capture.c index 5c9db0910a76..d9710b5dd375 100644 --- a/drivers/media/platform/s3c-camif/camif-capture.c +++ b/drivers/media/platform/s3c-camif/camif-capture.c @@ -117,6 +117,8 @@ static int sensor_set_power(struct camif_dev *camif, in= t on) =20 if (camif->sensor.power_count =3D=3D !on) err =3D v4l2_subdev_call(sensor->sd, core, s_power, on); + if (err =3D=3D -ENOIOCTLCMD) + err =3D 0; if (!err) sensor->power_count +=3D on ? 1 : -1; =20 --=20 2.17.1