The aac driver needs 256K of contiguous physical memory in order to attach.  If it can't get that (highly likely if loaded as a module on a system that's been up for a while), give a more descriptive error message. Also clean up some nearby style nits.
The aac driver needs 256K of contiguous physical memory in order to
attach.  If it can't get that (highly likely if loaded as a module on
a system that's been up for a while), give a more descriptive error
message.
Also clean up some nearby style nits.

MFC after:	2 days

jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase