PVS-Studio warning V579 for ReactOS

typedef struct _HHIVE
{
  ...
} HHIVE, *PHHIVE;

VOID
CmGetSystemControlValues(....)
{
  PHHIVE SystemHive = (PHHIVE)&CmControlHive;
  ...
  RtlZeroMemory(SystemHive, sizeof(SystemHive));
  ...
}

Most likely this is what should be written here: RtlZeroMemory(SystemHive, sizeof(*SystemHive));

This suspicious code was found in ReactOS project by PVS-Studio static code analyzer.
Warning message is:
V579 The memset function receives the pointer and its size as arguments. It is possibly a mistake. Inspect the third argument. ntoskrnl cmcontrl.c 121

PVS-Studio is a static analyzer for detecting bugs in the source code of applications written in C, C++, C++11, C++/CX. Site: http://www.viva64.com/en/pvs-studio/