re: [media] hackrf: add support for transmitter

re: [media] hackrf: add support for transmitter

[Dan Carpenter]

Hello Antti Palosaari,

The patch 8bc4a9ed8504: "[media] hackrf: add support for transmitter"
from Oct 10, 2015, leads to the following static checker warning:

	drivers/media/usb/hackrf/hackrf.c:1533 hackrf_probe()
	error: we previously assumed 'dev' could be null (see line 1366)

drivers/media/usb/hackrf/hackrf.c
  1520          dev_notice(dev->dev, "SDR API is still slightly experimental and functionality changes may follow\n");
  1521          return 0;
  1522  err_video_unregister_device_rx:
  1523          video_unregister_device(&dev->rx_vdev);
  1524  err_v4l2_device_unregister:
  1525          v4l2_device_unregister(&dev->v4l2_dev);
  1526  err_v4l2_ctrl_handler_free_tx:
  1527          v4l2_ctrl_handler_free(&dev->tx_ctrl_handler);
  1528  err_v4l2_ctrl_handler_free_rx:
  1529          v4l2_ctrl_handler_free(&dev->rx_ctrl_handler);
  1530  err_kfree:
  1531          kfree(dev);
  1532  err:
  1533          dev_dbg(dev->dev, "failed=%d\n", ret);
                        ^^^
"dev" is either freed or NULL.  Also this change is basically unrelated
to adding transmitter support...  :/

  1534          return ret;
  1535  }

regards,
dan carpenter