746e0ef95a
Currently message->payload always points to the address immediately following the header in a message. If the payload length is 0, this is not a valid pointer. Change the code to assign a null pointer to the payload in this case. I have verified that no code dereferences the payload pointer unless the payload is known to have non-zero size. Signed-off-by: Alex Elder <elder@linaro.org> Signed-off-by: Greg Kroah-Hartman <greg@kroah.com>