WdfSpinlock rule (kmdf)

The WdfSpinlock rule specifies that calls to the WdfSpinLockAcquire method are used in strict alternation with WdfSpinlockRelease. At the end of any KMDF callback routine, the driver should not hold the framework spinlock object that was obtained by a previous call to WdfSpinLockAcquire.

Driver model KMDF

How to test

At compile time

Run Static Driver Verifier and specify the WdfSpinlock 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

WdfSpinLockAcquire WdfSpinLockCreate WdfSpinLockRelease