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CancelSpinLock rule (storport)

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The CancelSpinLock Rule (Storport) rule verifies that each call to IoAcquireCancelSpinLock is promptly followed by a call to IoReleaseCancelSpinLock.

IoReleaseCancelSpinLock must not be called without acquiring the cancel spin lock first. In addition, when a miniport callback routine exits, it must not be holding any cancel spin locks

Driver model: Storport

How to test

At compile time

Run Static Driver Verifier and specify the CancelSpinLock 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

IoAcquireCancelSpinLock IoReleaseCancelSpinLock