SPI NOR hardware drivers now return useful value from their write
functions so check them.
Signed-off-by: NMichal Suchanek <hramrach@gmail.com>
Signed-off-by: NBrian Norris <computersforpeace@gmail.com>
Tested-by Cyrille Pitchen <cyrille.pitchen@atmel.com>
Acked-by: NMichal Suchanek <hramrach@gmail.com>
Tested-by: NMichal Suchanek <hramrach@gmail.com>