Don't check pointers for NULL before RtlFreeHeap. It is redundant.

dlls/kernel/sync.c

@@ -386,11 +386,8 @@ void WINAPI MakeCriticalSectionGlobal( CRITICAL_SECTION *crit )
     HANDLE sem = crit->LockSemaphore;
     if (!sem) NtCreateSemaphore( &sem, SEMAPHORE_ALL_ACCESS, NULL, 0, 1 );
     crit->LockSemaphore = ConvertToGlobalHandle( sem );
-    if (crit->DebugInfo)
-    {
-        RtlFreeHeap( GetProcessHeap(), 0, crit->DebugInfo );
-        crit->DebugInfo = NULL;
-    }
+    RtlFreeHeap( GetProcessHeap(), 0, crit->DebugInfo );
+    crit->DebugInfo = NULL;
 }
 
 

dlls/ntdll/debugbuffer.c

@@ -107,9 +107,9 @@ NTSTATUS WINAPI RtlDestroyQueryDebugBuffer(IN PDEBUG_BUFFER iBuf)
    NTSTATUS nts = STATUS_SUCCESS;
    FIXME("(%p): stub\n", iBuf);
    if (NULL != iBuf) {
-     if (NULL != iBuf->ModuleInformation) RtlFreeHeap(GetProcessHeap(), 0, iBuf->ModuleInformation);
-     if (NULL != iBuf->HeapInformation) RtlFreeHeap(GetProcessHeap(), 0, iBuf->HeapInformation);
-     if (NULL != iBuf->LockInformation) RtlFreeHeap(GetProcessHeap(), 0, iBuf->LockInformation);
+     RtlFreeHeap(GetProcessHeap(), 0, iBuf->ModuleInformation);
+     RtlFreeHeap(GetProcessHeap(), 0, iBuf->HeapInformation);
+     RtlFreeHeap(GetProcessHeap(), 0, iBuf->LockInformation);
      RtlFreeHeap(GetProcessHeap(), 0, iBuf);
    }
    return nts;

dlls/ntdll/reg.c

@@ -345,8 +345,7 @@ NTSTATUS WINAPI RtlpNtEnumerateSubKey( HANDLE handle, UNICODE_STRING *out, ULONG
     }
   }
 
-  if (info)
-    RtlFreeHeap( GetProcessHeap(), 0, info );
+  RtlFreeHeap( GetProcessHeap(), 0, info );
   return ret;
 }
 

dlls/ntdll/thread.c

@@ -470,7 +470,7 @@ error:
         SIZE_T size = 0;
         NtFreeVirtualMemory( NtCurrentProcess(), &addr, &size, MEM_RELEASE );
     }
-    if (info) RtlFreeHeap( GetProcessHeap(), 0, info );
+    RtlFreeHeap( GetProcessHeap(), 0, info );
     if (handle) NtClose( handle );
     close( request_pipe[1] );
     return status;