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Jeffrey Lee authored
OS_DynamicArea 21, 22 & 25 were using the value of the PMP page list pointer (DANode_PMP) to determine whether the dynamic area is a PMP or not. However, PMPs which have had their max physical size set to zero will don't have the page list allocated, which will cause the test to fail. Normally this won't matter (those calls can't do anything useful when used on PMPs with zero max size), except for the edge case of where the SWI has been given a zero-length page list as input. By checking the value of DANode_PMP, this would result in the calls incorrectly returning an error. Fix this by having the code check the DA flags instead. Also, add a check to OS_DynamicArea 23 (PMP resize), otherwise non-PMP DAs could end up having page lists allocated for them.
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