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kmdf-initfreedevicecreatetype4.md

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InitFreeDeviceCreateType4 Rule (KMDF)
The InitFreeDeviceCreateType4 rule specifies that a driver must call WdfDeviceInitFree if the driver encounters an error while it calls WdfDeviceCreate and if the driver received the WDFDEVICE\_INIT structure from a call to WdfControlDeviceInitAllocate.
05/21/2018
InitFreeDeviceCreateType4 rule (kmdf)
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InitFreeDeviceCreateType4
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InitFreeDeviceCreateType4 rule (kmdf)

The InitFreeDeviceCreateType4 rule specifies that a driver must call WdfDeviceInitFree if the driver encounters an error while it calls WdfDeviceCreate and if the driver received the WDFDEVICE_INIT structure from a call to WdfControlDeviceInitAllocate.

Driver model: KMDF

How to test

At compile time

Run Static Driver Verifier and specify the InitFreeDeviceCreateType4 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

WdfControlDeviceInitAllocate WdfDeviceCreate WdfDeviceInitFree

See also

InitFreeDeviceCallback InitFreeDeviceCreate InitFreeDeviceCreateType2 PdoInitFreeDeviceCreateType2 PdoInitFreeDeviceCallback PdoInitFreeDeviceCreate PdoInitFreeDeviceCreateType4 InitFreeNull