CmDeleteDeviceInterfaceRegKeyWorker

__int64 __fastcall CmDeleteDeviceInterfaceRegKeyWorker(__int64 a1, const WCHAR *a2, int a3, int a4, char a5){
  const WCHAR *v7; 
  int v8; 
  wchar_t *PoolWithTag; 
  unsigned __int64 v11; 
  int DeviceInterfaceRegKeyPath; 
  const WCHAR *v13; 
  _QWORD *v14; 
  __int64 v15; 
  unsigned __int16 Length; 
  char *v18; 
  __int64 v19; 
  __int64 v20; 
  int v21; 
  __int64 v22; 
  __int64 v23; 
  int v24; 
  size_t cchDest; 
  HANDLE v26; 
  char *v27; 
  HANDLE Handle; 
  struct _UNICODE_STRING DestinationString; 
  __int64 v31; 
  LODWORD(v31) = 0;
  v27 = 0i64;
  v26 = 0i64;
  v7 = a2;
  Handle = 0i64;
  v8 = 4;
  PoolWithTag = 0i64;
  DestinationString = 0i64;
  if( !a3 || (a3 & 0xFFFFFCCC) != 0 )
    goto LABEL_50;
  LODWORD(v11) = (a3 & 0x200) != 0 ? 600 : 480;
  PoolWithTag = (wchar_t *)ExAllocatePoolWithTag(PagedPool, (unsigned int)v11, 0x52504E50ui64);
  if( PoolWithTag )
  {
    while( 1 )
    {
      LODWORD(cchDest) = (unsigned int)v11 >> 1;
      DeviceInterfaceRegKeyPath = CmGetDeviceInterfaceRegKeyPath(
                                    (unsigned int)v11 >> 1,
                                    v7,
                                    a3,
                                    a4,
                                    v24,
                                    (__int64)PoolWithTag,
                                    cchDest,
                                    (__int64)&v31);
      if( DeviceInterfaceRegKeyPath != -1073741789 )
        break;
      ExFreePoolWithTag(PoolWithTag, 0);
      PoolWithTag = 0i64;
      v11 = 2i64 * (unsigned int)v31;
      if( v11 > 0xFFFFFFFF )
      {
        DeviceInterfaceRegKeyPath = -1073741675;
        goto LABEL_10;
      }
      PoolWithTag = (wchar_t *)ExAllocatePoolWithTag(PagedPool, (unsigned int)v11, 0x52504E50ui64);
      if( !PoolWithTag )
        goto LABEL_46;
      v7 = a2;
    }
  }
  else
  {
LABEL_46:
    DeviceInterfaceRegKeyPath = -1073741801;
  }
  if( DeviceInterfaceRegKeyPath < 0 )
    goto LABEL_10;
  if( (a3 & 0x100) != 0 )
  {
    v13 = PoolWithTag;
    if( a1 )
      v14 = *(_QWORD **)(a1 + 224);
    else
      v14 = 0i64;
    DeviceInterfaceRegKeyPath = SysCtxRegOpenCurrentUserKey(v14, 0, 0x2000000u, &v26);
    if( DeviceInterfaceRegKeyPath < 0 )
      goto LABEL_10;
    v18 = (char *)v26;
    goto LABEL_25;
  }
  DeviceInterfaceRegKeyPath = RtlInitUnicodeStringEx(&DestinationString, PoolWithTag);
  if( DeviceInterfaceRegKeyPath < 0 )
    goto LABEL_10;
  Length = DestinationString.Length;
  if( DestinationString.Length >= (unsigned int)v11
    || DestinationString.Length <= 0x32u
    || !(unsigned __int8)RtlPrefixUnicodeString(
                           (PVOID)&`_CmDeleteDeviceContainerRegKeyWorker'::`2'::ObjectPathRootPrefix,
                           (INT64 *)&DestinationString) )
  {
LABEL_50:
    DeviceInterfaceRegKeyPath = -1073741811;
    goto LABEL_10;
  }
  v13 = PoolWithTag + 25;
  DestinationString.MaximumLength -= 50;
  DestinationString.Buffer = PoolWithTag + 25;
  DestinationString.Length = Length - 50;
  if( (unsigned __int8)RtlPrefixUnicodeString(
                          (PVOID)&`_CmDeleteDeviceInterfaceRegKeyWorker'::`2'::DeviceClassesKeyPrefix,
                          (INT64 *)&DestinationString) )
  {
    v8 = 9;
    v13 = PoolWithTag + 47;
  }
  else if( (unsigned __int8)RtlPrefixUnicodeString(
                               (PVOID)&`_CmDeleteDeviceInterfaceRegKeyWorker'::`2'::HardwareProfilesKeyPrefix,
                               (INT64 *)&DestinationString) )
  {
    v8 = 14;
    v13 = PoolWithTag + 43;
  }
  DeviceInterfaceRegKeyPath = PnpCtxGetCachedContextBaseKey(a1, v8, (__int64 *)&v27);
  if( DeviceInterfaceRegKeyPath >= 0 )
  {
    v18 = v27;
LABEL_25:
    if( a3 == 49
      || (DeviceInterfaceRegKeyPath = CmOpenDeviceInterfaceRegKey(a1, a2, 0x30u, v15, 1, 0, (__int64)&Handle, 0i64),
          DeviceInterfaceRegKeyPath >= 0) )
    {
      if( a5 )
      {
        if( a1 && (v19 = *(_QWORD *)(a1 + 224)) != 0 )
          v20 = *(_QWORD *)(v19 + 8);
        else
          v20 = 0i64;
        v21 = RegRtlDeleteTreeInternal(v18, v13, v20, 0);
      }
      else
      {
        if( a1 && (v22 = *(_QWORD *)(a1 + 224)) != 0 )
          v23 = *(_QWORD *)(v22 + 8);
        else
          v23 = 0i64;
        v21 = RegRtlDeleteKeyTransacted(v18, v13, v23);
      }
      if( (int)(v21 + 0x80000000) >= 0 && v21 != -1073741444 )
        DeviceInterfaceRegKeyPath = v21;
    }
  }
LABEL_10:
  if( Handle )
    ZwClose(Handle);
  if( v26 )
    ZwClose(v26);
  if( PoolWithTag )
    ExFreePoolWithTag(PoolWithTag, 0);
  return(unsigned int)DeviceInterfaceRegKeyPath;
}

Referenced by: