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Mon, 17 Sep 2018 03:07:11 +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 03:07:10 +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 4.4 25/43] media: s3c-camif: ignore -ENOIOCTLCMD from v4l2_subdev_call for s_power Thread-Topic: [PATCH AUTOSEL 4.4 25/43] media: s3c-camif: ignore -ENOIOCTLCMD from v4l2_subdev_call for s_power Thread-Index: AQHUTjM7+cmfNyNUY0ap06cMKnVgzA== Date: Mon, 17 Sep 2018 03:05:04 +0000 Message-ID: <20180917030445.484-25-alexander.levin@microsoft.com> References: <20180917030445.484-1-alexander.levin@microsoft.com> In-Reply-To: <20180917030445.484-1-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;CY4PR21MB0759;6:n5c5bsLkw8XuhyFh7DVEcMXhw/a+DiU9jBIpetULgSGs4GY82G0h2CPU2G6MX4xd8BL1ikjscboe5GOr+pWhUKWfrpW4NeVt6s4vv70GET0rVoGRB4owEZX6ZAW9mx3ocBC6twbcUD3YIVh94qq0rceknoLCRXbAxZrGsfz4IwgHGmug6ECpB5jemzaH46NrhDAmG6Jm/M08e+zrMrSOFbgMmqGLlZ/i6KFCyOPR1Cnup/JaP2pmy2nMgQISdGuX8cHyb4CD+T8P3lBVCFUWyKNTcHmTTJ8ZXC/LKZULxFctPjEoSkiIYIC2+3XKzlhI54G4tpuQkPSSBgZc6V3bKPDy1m/NvgYdY2fc1l4WoULba2mCZyIgO208d7xBnk/XheAT/3Cc4r424NhFKCBBp5j+a/5YIqlnNKVg6G1OMyi5zkCZrQ0ndPQfNvtSVJ2KY+RMpA3fVaZR6NHPUtKZnA==;5:kQKZlwcwA1X9wd2g5F7zbnnKiHmGErrrPH3ggNeekIK0FmnUZmd9D0HvdWd1ojRyWAsnlTg+sElbUlk6UDW3MDIL24jITb1DdrwOGCtT04iU8KbFL8Ekj5ehG335FN6WMrk5QeEeOzg2PCz6NC/YUyAuRfLcF1VV5wxbjOogySo=;7:VOjObDlv1e1QAPHZwzBUtN899SJENnlweLrWi3PKTYx4BImaLz+ON6X3sdkeFgoHy339KKUUw8mFLdhCqAWQL+ccHkAxFI1QIs0etZpPuvxzwiLsYLJahNYxH6WvVmNJG9ps2ZJIWE+O2BZpWNFl5UXD7cAjitKycXKkKgzG9+dKVBnjOFXatpJ5HdpzksLOEmVby8X3mbAsmZAPvk/XdmSgD8TFvl8KjhtzU4/M3bj1t/6ewAt3F+B4ZMHnHx0e x-ms-office365-filtering-correlation-id: 76fd8446-1219-4e89-3500-08d61c4aa919 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:CY4PR21MB0759; 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received-spf: None (protection.outlook.com: microsoft.com does not designate permitted sender hosts) x-microsoft-antispam-message-info: 3JdyUT6DtsfvDsNP6BQAB6wa5Q9000AdKxoGhv4y9a0N9Z5za1CAD7KnEKW8fkOHtHf4Mo19pPBW1BHU9KHl8zxX+GEobgMI3qUVPeQhG0NxVXA8X/AcJ0bPM+NdMnoSRpDsc/cGYi9Tt2fo//0+eBywYQTv/pviLAXBv27Mf6bD1Ift1WFc9isD772qkiglDJyG7Dcp+fxRFLW7LgOZBNWYxo+tIigtG6BcHcXE6Hptt5r+ea83yALcCtDJm+s7PWMIhF3dYSE9Vr6HbQ3/9MiwC0NNvJ7jZZ29Aj7skt/Kp20Y7n4C6s24QpPYlCocnUFCGHF2pLvWvnYkA7iwngET4SdsjlMPF8GXj38a390= 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: 76fd8446-1219-4e89-3500-08d61c4aa919 X-MS-Exchange-CrossTenant-originalarrivaltime: 17 Sep 2018 03:05:04.6485 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 72f988bf-86f1-41af-91ab-2d7cd011db47 X-MS-Exchange-Transport-CrossTenantHeadersStamped: CY4PR21MB0759 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 fa6af4a7dae1..f97f4bc22ced 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