CompleteCanceledReq rule (kmdf)

The CompleteCanceledReq rule specifies that if the request has already been canceled, the request is no longer valid, and the driver should not complete it. While the driver unmarks a request that was previously marked cancelable, it must check that the request has not already been canceled. If the driver does not make this check, the driver might complete a request that has been freed.

Driver model: KMDF

How to test

At compile time
Run Static Driver Verifier and specify the CompleteCanceledReq 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

WdfRequestComplete WdfRequestCompleteWithInformation WdfRequestCompleteWithPriorityBoost WdfRequestUnmarkCancelable