Fixed profile cache flushing when no filename is specified (reported

dlls/kernel/profile.c

@@ -1421,14 +1421,15 @@ BOOL WINAPI WritePrivateProfileStringW( LPCWSTR section, LPCWSTR entry,
 
     RtlEnterCriticalSection( &PROFILE_CritSect );
 
-    if (PROFILE_Open( filename ))
-    {
     if (!section && !entry && !string) /* documented "file flush" case */
     {
-            PROFILE_FlushFile();
-            PROFILE_ReleaseFile();  /* always return FALSE in this case */
+        if (!filename || PROFILE_Open( filename ))
+        {
+            if (CurProfile) PROFILE_ReleaseFile();  /* always return FALSE in this case */
+        }
     }
-	else {
+    else if (PROFILE_Open( filename ))
+    {
         if (!section) {
             FIXME("(NULL?,%s,%s,%s)?\n",
                   debugstr_w(entry), debugstr_w(string), debugstr_w(filename));
@@ -1437,7 +1438,6 @@ BOOL WINAPI WritePrivateProfileStringW( LPCWSTR section, LPCWSTR entry,
             PROFILE_FlushFile();
         }
     }
-    }
 
     RtlLeaveCriticalSection( &PROFILE_CritSect );
     return ret;
@@ -1481,10 +1481,15 @@ BOOL WINAPI WritePrivateProfileSectionW( LPCWSTR section,
 
     RtlEnterCriticalSection( &PROFILE_CritSect );
 
-    if (PROFILE_Open( filename )) {
     if (!section && !string)
-            PROFILE_ReleaseFile();  /* always return FALSE in this case */
-        else if (!string) {/* delete the named section*/
+    {
+        if (!filename || PROFILE_Open( filename ))
+        {
+            if (CurProfile) PROFILE_ReleaseFile();  /* always return FALSE in this case */
+        }
+    }
+    else if (PROFILE_Open( filename )) {
+        if (!string) {/* delete the named section*/
 	    ret = PROFILE_SetString(section,NULL,NULL, FALSE);
 	    PROFILE_FlushFile();
         } else {