RequestedPowerIrp rule (wdm)

The RequestedPowerIrp rule specifies that driver calls PoRequestPowerIrp with the *Irp pointer variable set to NULL.

Because the pointer returned by PoRequestPowerIrp is not reliable, drivers should not retrieve or use this value.

Driver model WDM
Bug check(s) found with this rule Bug Check 0xC4: DRIVER_VERIFIER_DETECTED_VIOLATION (0x0004100B)

How to test

At compile time

Run Static Driver Verifier and specify the RequestedPowerIrp 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.

At run time

Run Driver Verifier and select the DDI compliance checking option.

Applies to