[media] DaVinci-VPFE-Capture: Delete an unnecessary variable initialisation in vpfe_probe()

* Return an error code as a constant after a failed call of
  the function "vpfe_initialize".

* The local variable "ret" will be set then to an appropriate value
  a bit later. Thus omit the explicit initialisation at the beginning.
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>

drivers/media/platform/davinci/vpfe_capture.c

@@ -1817,7 +1817,7 @@ static int vpfe_probe(struct platform_device *pdev)
 	struct vpfe_device *vpfe_dev;
 	struct i2c_adapter *i2c_adap;
 	struct video_device *vfd;
-	int ret = -ENOMEM, i, j;
+	int ret, i, j;
 	int num_subdevs = 0;
 
 	/* Get the pointer to the device object */
@@ -1826,7 +1826,7 @@ static int vpfe_probe(struct platform_device *pdev)
 	if (!vpfe_dev) {
 		v4l2_err(pdev->dev.driver,
 			"Failed to allocate memory for vpfe_dev\n");
-		return ret;
+		return -ENOMEM;
 	}
 
 	vpfe_dev->pdev = &pdev->dev;