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NdisAllocateMdl rule (ndis)

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The NdisAllocateMdl rule specifies that NdisAllocateMdl and NdisFreeMdl are called in alternate order. The ultimate goal is to make sure all MDLs are freed when MiniportHaltEx ends.

The rule uses three different states. The state changes when an MDL is allocated or freed. If an MDL is still allocated when the MiniportHaltEx exits, the rule reports the defect.

Driver model: NDIS

How to test

At compile time

Run Static Driver Verifier and specify the NdisAllocateMdl 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

NdisAllocateMdl NdisFreeMdl