PRB: NdisMWriteLogData Returns Incorrect Status Value (194638)


The information in this article applies to:

  • Microsoft Win32 Device Driver Kit (DDK) for Windows NT 4.0
This article was previously published under Q194638

SYMPTOMS

NdisMWriteLogData returns an uninitialized NDIS_STATUS for a successful write condition. As a result, you get a garbage value off of the stack.

CAUSE

NDIS does not properly set the return status to NDIS_STATUS_SUCCESS for a successful write condition.

RESOLUTION

This is fixed in Win2k and beyond. To work around this in versions of Windows predating Win2k, have your code check for following:
   status = NdisMWriteLogData( LogHandle, LogBuffer, LogBufferSize);
   if ( NDIS_STATUS_BUFFER_OVERFLOW == status) {
      // 
      // You have an error condition.
      // 
   } else {
      // 
      // Continue...
      // 
   }

NOTE: The status code is compared to NDIS_STATUS_BUFFER_OVERFLOW, which is also incorrectly documented in the Windows NT DDK and addressed in the following article in the Microsoft Knowledge Base:

194637 DOC: Error Incorrect NdisMWriteLogData Return Value

Modification Type:MinorLast Reviewed:7/21/2004
Keywords:kbNDIS kbprb KB194638
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