SpinLockDpc rule (storport)

This rule verifies that a call to KeAcquireSpinLockRaiseToDpc is promptly followed by a call to KeReleaseSpinlock. If a driver calls KeAcquireSpinLock or KeAcquireSpinLockRaiseToDpc again prior to releasing the lock, it fails the rule. In addition, before exiting the dispatch or cancel routine, the driver must release the spin lock.

Driver model: Storport

How to test

At compile time
Run Static Driver Verifier and specify the SpinLockDpc rule. Use the following steps to run an analysis of your code: Prepare your code (use role type declarations). Run Static Driver Verifier. View and analyze the results. For more information, see Using Static Driver Verifier to Find Defects in Drivers.

Applies to

KeAcquireSpinLock KeAcquireSpinLockRaiseToDpc KeReleaseSpinLock