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ParentObjectCheck rule (kmdf)

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The ParentObjectCheck rule specifies that driver should call WdfMemoryCreate specifying a parent object using a WDF_OBJECT_ATTRIBUTES structure. If driver doesn’t set a parent object for the framework memory object then the framework sets the driver as the default parent, so that unless the driver deletes the framework memory object explicitly it’ll remain in the memory until the driver object unloads.

Driver model: KMDF

How to test

At compile time

Run Static Driver Verifier and specify the ParentObjectCheck rule.

Use the following steps to run an analysis of your code:
  1. Prepare your code (use role type declarations).
  2. Run Static Driver Verifier.
  3. View and analyze the results.

For more information, see Using Static Driver Verifier to Find Defects in Drivers.

Applies to

WdfMemoryCreate