staging: r8188eu: don't copy ra and ta before we fail

In validate_recv_data_frame, we return an error if both to_ds and
from_ds are set in the incoming data frame. There's no need to populate
patrib->ra and ta before we return. The caller will free the received
frame, including pattrib.

Signed-off-by: Martin Kaiser <martin@kaiser.cx>
Link: https://lore.kernel.org/r/20220403165438.357728-7-martin@kaiser.cx


Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>