StartIoCancel rule (wdm)
The StartIoCancel rule specifies that the driver must not call IoSetStartIoAttributes with the NonCancelable parameter set to FALSE before calling IoSetCancelRoutine with a non-NULLCancel routine.
Setting the NonCancelable parameter to FALSE before registering the Cancel routine can result in a cancellation race condition.
Because a driver's Cancel routine must include a call to IoReleaseCancelSpinLock (to release the spin lock that the I/O Manager acquires before calling the Cancel routine), consider verifying your driver with both the StartIoCancel rule and the CancelSpinLock rule.
Driver model: WDM
How to test
| At compile time |
|---|
Run Static Driver Verifier and specify the StartIoCancel rule. Use the following steps to run an analysis of your code:
For more information, see Using Static Driver Verifier to Find Defects in Drivers. |
Applies to
IoSetCancelRoutine IoSetStartIoAttributes
See also
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