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Mon, 17 Sep 2018 03:01:56 +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 03:01:56 +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 4.18 071/136] media: s3c-camif: ignore -ENOIOCTLCMD from v4l2_subdev_call for s_power Thread-Topic: [PATCH AUTOSEL 4.18 071/136] media: s3c-camif: ignore -ENOIOCTLCMD from v4l2_subdev_call for s_power Thread-Index: AQHUTjKnzt5XXxR5XEWOzlRXJWhEDg== Date: Mon, 17 Sep 2018 03:00:56 +0000 Message-ID: <20180917030006.245495-71-alexander.levin@microsoft.com> References: <20180917030006.245495-1-alexander.levin@microsoft.com> In-Reply-To: <20180917030006.245495-1-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;CY4PR21MB0502;6:gPeAxQQyNSrYqf+Xx+Yiu1OvDAHbAaBX8mJf4XSqsDjxKEMYZRzgqALgSi7BXJ3wDUBpWylHSb+ur/HFd5iYq7HTnhyZwy7UDamVG1V+c/Wixnk72ClglqO2S6C/j4/GaLuzwmVoNa2fRpAAOw3WTfoUBOr4xSS5dY4GHOObzzzUZmE9WOpWCBHupSRB2MQPfzy7PCX2xOXH4cxxwr7YmNJc6ISFTBHtKZ4KYFo04SRn/OGrIMRW6m6AsrB8PjJTXApykaYgBu19Y57ECjwvE4s57FIv/s11KPhv/lhPGXE7I7qdAIO1TlsOhbf87L07gl14SeOTlY+XDLBNrCy6mAAd634Ec1/b1EuSlQIgY6XjFFG7Zyw6gCC0XOATeCQfJ6wNGimehXo3rMmavFCK3u8o30bHTUEMOtWMij2E35dD98JB04lqarN946r67Cj4XjOuRo1yFlVBTWcFpQGWrg==;5:wpxnKZS0n0YgPnpqq9mfanuEwNbtY2cRfMP056eUmH43YPJdmCjNdErp0oT1RkdxfkIQedtKzrc4/qwqlToxVKnyDojdPwwSHXctfIbqV8tRLSDpqAc+MmZSV8qlIHwXbFUHGFDYGqL8UaFSN9d0HFhyc8SdgQlwfTtyRLvdBJU=;7:ioNVthVqYjURGfei/kgVF/QHD8Wa3g9Hyy9gHMO8IADdVMPlg9v/YaDu8JbvW1CG/3Na7olrdytOxiNSdKz/2ZX4+xhBO9dsaJYpP+1gXzy0ZRF+ipeiB6pMCH9G83JjdazLivlu1UGkjzHcGyEeA/NW9gxS2svF5+KANzxtRYSF2fXeYiAOfflpN/O8ww+zW2wlQlYcU6UxPRSwT1XWqcHsXxmzSkwpjJR4zzaMcP0XlTerShlDvqJaegcHuMJK x-ms-office365-filtering-correlation-id: 46c887cb-aeab-4c63-fbed-08d61c49ed8b 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:CY4PR21MB0502; 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received-spf: None (protection.outlook.com: microsoft.com does not designate permitted sender hosts) x-microsoft-antispam-message-info: SNsLE0ky3xEswHLTyE+9DfWfMB5ldqxz1LkN85Vwhvz2ySP9GMsFCt7wacWYiAfKGHoiLu0l2DpLNr5y2AYNJ/FAF9mjk1jvDKRFoCQj9yV1/Kt5wq/x8okoi2mY0e/oWxH9t/zUyBDJgj8h0sVOZNYLsSjXSctHKuavryTLLWMbfe74LjVF2l7OXj+x+UngBEKkQsd5xUxkzoYh/ZqR96Atg+8ICCei1PcuW9asryri7oPlQTixNda+WbZdvEfc8oVMIk6R/L4F4EksKdm3widUQoIGtSFiTSV7eXTYa/OwKuMTw27Ceek+SKWtGOPWa/Q9BY1aevPK8YK2kfyw6RGRidA6MxN8U+basPb2MXE= 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: 46c887cb-aeab-4c63-fbed-08d61c49ed8b X-MS-Exchange-CrossTenant-originalarrivaltime: 17 Sep 2018 03:00:56.5575 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 72f988bf-86f1-41af-91ab-2d7cd011db47 X-MS-Exchange-Transport-CrossTenantHeadersStamped: CY4PR21MB0502 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 9ab8e7ee2e1e..b1d9f3857d3d 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