linux-imx

media: staging: imgu: Address compiler / checker warnings in MMU code

Address C compiler, sparse and smatch warnings and little style issues in
the IMGU MMU code.

Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Tested-by: Rajmohan Mani <rajmohan.mani@intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>