In case the request to locate the firmware file part 2 fails, the error
path releases the already freed firmware memory location again. Thus
reset the firmware pointer to NULL after releasing firmware file part 1.
Signed-off-by: NChristian Engelmayer <cengelma@gmx.at>
Signed-off-by: NMauro Carvalho Chehab <mchehab@osg.samsung.com>