Staging: vc04_services: Cleanup in ctrl_set_bitrate()

Remove unnecessary variable from the function and make a corresponding
change w.r.t the variable. In addition to that align the parameters in
the parentheses to maintain Linux kernel coding style

Issue suggested by Coccinelle.

Signed-off-by: Madhumitha Prabakaran <[e-mail]>
Signed-off-by: Greg Kroah-Hartman <[e-mail]>

drivers/staging/vc04_services/bcm2835-camera/controls.c

···
 			    struct v4l2_ctrl *ctrl,
 			    const struct bm2835_mmal_v4l2_ctrl *mmal_ctrl)
 {
-	int ret;
 	struct vchiq_mmal_port *encoder_out;
 
 	dev->capture.encode_bitrate = ctrl->val;
 
 	encoder_out = &dev->component[MMAL_COMPONENT_VIDEO_ENCODE]->output[0];
 
-	ret = vchiq_mmal_port_parameter_set(dev->instance, encoder_out,
-					    mmal_ctrl->mmal_id,
-					    &ctrl->val, sizeof(ctrl->val));
-	ret = 0;
-	return ret;
+	return vchiq_mmal_port_parameter_set(dev->instance, encoder_out,
+					     mmal_ctrl->mmal_id, &ctrl->val,
+					     sizeof(ctrl->val));
 }
 
 static int ctrl_set_bitrate_mode(struct bm2835_mmal_dev *dev,