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media: pxa_camera: fix smatch warning 

drivers/media/platform/pxa_camera.c:2400 pxa_camera_probe() error: we previously assumed 'pcdev->pdata' could be null (see line 2397)

First check if platform data is provided, then check if DT data is provided,
and if neither is provided just return with -ENODEV.

Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
This commit is contained in:
Hans Verkuil 2019-02-07 04:13:38 -05:00 committed by Mauro Carvalho Chehab
parent d75e77ed14
commit db89a47fb9
1 changed files with 5 additions and 3 deletions
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8
drivers/media/platform/pxa_camera.c
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@ -2394,15 +2394,17 @@ static int pxa_camera_probe(struct platform_device *pdev)
pcdev->res = res;
pcdev->pdata = pdev->dev.platform_data;
if (pdev->dev.of_node && !pcdev->pdata) {
err = pxa_camera_pdata_from_dt(&pdev->dev, pcdev, &pcdev->asd);
} else {
if (pcdev->pdata) {
pcdev->platform_flags = pcdev->pdata->flags;
pcdev->mclk = pcdev->pdata->mclk_10khz * 10000;
pcdev->asd.match_type = V4L2_ASYNC_MATCH_I2C;
pcdev->asd.match.i2c.adapter_id =
pcdev->pdata->sensor_i2c_adapter_id;
pcdev->asd.match.i2c.address = pcdev->pdata->sensor_i2c_address;
} else if (pdev->dev.of_node) {
err = pxa_camera_pdata_from_dt(&pdev->dev, pcdev, &pcdev->asd);
} else {
return -ENODEV;
}
if (err < 0)
return err;