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Alex Elder 746e0ef95a greybus: use null pointer for empty payload
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>
2014-12-03 15:08:17 -08:00
drivers/staging/greybus greybus: use null pointer for empty payload 2014-12-03 15:08:17 -08:00