Fix some minor warnings.
Fix a bad assertion.
Check RET isn't hit right away for safety.
Looks like these should be pos/nrm/col.
Fix a logic error in module load validation.
Stop shadowing the i variable.
Fix an uninitialized return value in sceIoCancel.
Minor typesafety/bounds checking warning fixes.
Merge pull request #547 from unknownbrackets/warnings

Warning fixes