DrvDbDeleteObjectSubKey

__int64 __fastcall DrvDbDeleteObjectSubKey(__int64 *a1, char *a2, const WCHAR *a3, unsigned int a4){
  __int64 v4; 
  unsigned int v5; 
  void *PoolWithTag; 
  unsigned int v9; 
  WCHAR *v10; 
  __int64 v11; 
  __int64 v12; 
  int v13; 
  int inited; 
  __int64 v15; 
  signed int i; 
  __int64 v17; 
  int v18; 
  __int64 v19; 
  int v20; 
  __int64 v21; 
  UINT64 v22; 
  WCHAR *v23; 
  char *j; 
  __int64 v25; 
  int v26; 
  __int64 v27; 
  __int64 v28; 
  __int64 v29; 
  int v30; 
  WCHAR *v31; 
  bool v32; 
  __int64 v33; 
  __int64 v34; 
  int v35; 
  __int64 v36; 
  unsigned int v37; 
  __int64 v38; 
  void *v39; 
  HANDLE v40; 
  UINT64 dwFlags; 
  unsigned int v43; 
  int v44; 
  int v45; 
  HANDLE Handle; 
  struct _UNICODE_STRING DestinationString; 
  unsigned int v49; 
  v4 = *a1;
  v5 = 0;
  Handle = 0i64;
  v43 = 0;
  v44 = 0;
  v49 = 0;
  PoolWithTag = 0i64;
  v45 = 0;
  v9 = 0;
  v10 = 0i64;
  if( a4 <= 1 )
  {
    if( v4 && (v11 = *(_QWORD *)(v4 + 224)) != 0 )
      v12 = *(_QWORD *)(v11 + 8);
    else
      v12 = 0i64;
    v13 = RegRtlDeleteTreeInternal(a2, a3, v12, 0);
    inited = v13;
LABEL_7:
    if( v13 == -1073741444 )
      inited = 0;
    goto LABEL_86;
  }
  v15 = 0i64;
  if( v4 )
    v15 = *(_QWORD *)(v4 + 224);
  v13 = SysCtxRegOpenKey(v15, a2, a3, 0, 0x3001Fu, &Handle);
  inited = v13;
  if( v13 < 0 )
    goto LABEL_7;
  for( i = PnpGetGenericStorePropertyKeys(*a1, (char *)Handle, 0i64, 0, 0i64, 0, &v43);
        ;
        i = PnpGetGenericStorePropertyKeys(*a1, (char *)Handle, 0i64, 0, (__int64)PoolWithTag, v17, &v43) )
  {
    inited = i;
    if( i != -1073741789 )
      break;
    v17 = v43;
    if( v43 <= v9 )
    {
      inited = -1073741595;
      break;
    }
    if( PoolWithTag )
      ExFreePoolWithTag(PoolWithTag, 0);
    v9 = v17;
    PoolWithTag = ExAllocatePoolWithTag(PagedPool, 20 * v17, 0x42444450ui64);
    if( !PoolWithTag )
    {
      inited = -1073741801;
      break;
    }
  }
  if( (int)(inited + 0x80000000) >= 0 && inited != -1073741275 )
    goto LABEL_84;
  if( inited != -1073741275 )
    v5 = v9;
  v18 = 0;
  v19 = 0i64;
  if( inited != -1073741275 )
    v18 = inited;
  inited = v18;
  if( v5 )
  {
    do
    {
      v20 = PnpDeletePropertyWorker(*a1, (char *)Handle, 0i64, (__int64)PoolWithTag + 20 * v19, 0, dwFlags, 0);
      inited = v20;
      if( v20 == -1073741275 || v20 == -1073741790 )
      {
        inited = 0;
      }
      else if( v20 < 0 )
      {
        goto LABEL_84;
      }
      v19 = (unsigned int)(v19 + 1);
    }
    while( (unsigned int)v19 < v5 );
  }
  if( inited < 0 )
    goto LABEL_84;
  if( !wcschr((WCHAR *)a3, 0x5Cu) )
  {
    if( *a1 && (v33 = *(_QWORD *)(*a1 + 224)) != 0 )
      v34 = *(_QWORD *)(v33 + 8);
    else
      v34 = 0i64;
    v35 = RegRtlDeleteKeyTransacted((char *)Handle, 0i64, v34);
    inited = v35;
    if( v35 == -1073741444 )
    {
      inited = 0;
      goto LABEL_84;
    }
    if( v35 != -1073741535 )
      goto LABEL_84;
    inited = PnpCtxRegQueryInfoKey(v36, Handle, 0i64, 0i64, &v49, &v45, 0i64);
    if( inited < 0 )
      goto LABEL_84;
    v37 = v45 + 1;
    if( !v49 )
      goto LABEL_84;
    v39 = ExAllocatePoolWithTag(PagedPool, 2i64 * v37, 0x42444450ui64);
    if( v39 )
    {
      while( 1 )
      {
        v49 = v37;
        inited = PnpCtxRegEnumValue(v38, Handle, 0, v39, &v49, 0i64, 0i64, 0i64);
        if( inited < 0 )
          break;
        v40 = Handle;
        DestinationString = 0i64;
        inited = RtlInitUnicodeStringEx(&DestinationString, (WCHAR *)v39);
        if( inited >= 0 )
          inited = ZwDeleteValueKey(v40, &DestinationString);
        if( inited != -1073741772 && inited < 0 )
          goto LABEL_81;
      }
      if( inited == -2147483622 )
        inited = 0;
LABEL_81:
      ExFreePoolWithTag(v39, 0);
      goto LABEL_82;
    }
LABEL_40:
    inited = -1073741801;
    goto LABEL_84;
  }
  v21 = -1i64;
  do
    ++v21;
  while( a3[v21] );
  v22 = v21 + 1;
  v23 = (WCHAR *)ExAllocatePoolWithTag(PagedPool, 2 * v22, 0x42444450ui64);
  v10 = v23;
  if( !v23 )
    goto LABEL_40;
  LODWORD(dwFlags) = 2304;
  RtlStringCchCopyExW(v23, v22, (WCHAR *)a3, 0i64, 0i64, dwFlags);
  for( j = (char *)Handle; ; j = 0i64 )
  {
    if( !j )
    {
      v25 = 0i64;
      if( *a1 )
        v25 = *(_QWORD *)(*a1 + 224);
      v26 = SysCtxRegOpenKey(v25, a2, v10, 0, 0x3001Fu, &Handle);
      inited = v26;
      if( v26 < 0 )
      {
        v32 = v26 == -1073741444;
        goto LABEL_60;
      }
      inited = PnpCtxRegQueryInfoKey(v27, Handle, &v44, 0i64, &v49, 0i64, 0i64);
      if( inited < 0 || v44 || v49 )
        goto LABEL_82;
      j = (char *)Handle;
    }
    if( *a1 && (v28 = *(_QWORD *)(*a1 + 224)) != 0 )
      v29 = *(_QWORD *)(v28 + 8);
    else
      v29 = 0i64;
    v30 = RegRtlDeleteKeyTransacted(j, 0i64, v29);
    inited = v30;
    if( v30 == -1073741444 )
    {
      inited = 0;
      goto LABEL_57;
    }
    if( v30 < 0 )
      break;
LABEL_57:
    v31 = wcsrchr(v10, 0x5Cu);
    if( !v31 )
      goto LABEL_82;
    *v31 = 0;
    ZwClose(Handle);
    Handle = 0i64;
  }
  v32 = v30 == -1073741535;
LABEL_60:
  if( v32 )
    inited = 0;
LABEL_82:
  if( v10 )
    ExFreePoolWithTag(v10, 0);
LABEL_84:
  if( PoolWithTag )
    ExFreePoolWithTag(PoolWithTag, 0);
LABEL_86:
  if( Handle )
    ZwClose(Handle);
  return(unsigned int)inited;
}

Referenced by: