[dchapyshev] 42385: - Sync FreeLibrary with Wine. Fixes an exception at installation Firefox 3.5.x

Author: dchapyshev
Date: Tue Aug  4 18:43:37 2009
New Revision: 42385

URL: http://svn.reactos.org/svn/reactos?rev=42385&view=rev
Log:
- Sync FreeLibrary with Wine. Fixes an exception at installation Firefox 3.5.x

Modified:
    trunk/reactos/dll/win32/kernel32/misc/ldr.c

Modified: trunk/reactos/dll/win32/kernel32/misc/ldr.c
URL: http://svn.reactos.org/svn/reactos/trunk/reactos/dll/win32/kernel32/misc/ldr...
==============================================================================
--- trunk/reactos/dll/win32/kernel32/misc/ldr.c [iso-8859-1] (original)
+++ trunk/reactos/dll/win32/kernel32/misc/ldr.c [iso-8859-1] Tue Aug  4 18:43:37 2009
@@ -340,28 +340,25 @@
 /*
  * @implemented
  */
-BOOL
-WINAPI
-FreeLibrary( HMODULE hLibModule )
-{
-    PVOID Module = (PVOID)((ULONG_PTR)hLibModule & ~1);
+BOOL WINAPI FreeLibrary(HINSTANCE hLibModule)
+{
     NTSTATUS Status;

+    if (!hLibModule)
+    {
+        SetLastError(ERROR_INVALID_HANDLE);
+        return FALSE;
+    }
+
     if ((ULONG_PTR)hLibModule & 1)
     {
-        if (!RtlImageNtHeader(Module))
-        {
-            SetLastErrorByStatus(STATUS_INVALID_IMAGE_FORMAT);
-            return FALSE;
-        }
-
-        Status = NtUnmapViewOfSection(NtCurrentProcess(), Module);
-    }
-    else
-    {
-        Status = LdrUnloadDll(hLibModule);
-    }
-
+        /* this is a LOAD_LIBRARY_AS_DATAFILE module */
+        char *ptr = (char *)hLibModule - 1;
+        UnmapViewOfFile(ptr);
+        return TRUE;
+    }
+
+    Status = LdrUnloadDll(hLibModule);
     if (!NT_SUCCESS(Status))
     {
         SetLastErrorByStatus(Status);