Update cpu_speed.c

system/cpu_speed.c

@@ -8,23 +8,31 @@ int wmain(void) {
     HKEY key;
 
     long r = RegOpenKeyExW(HKEY_LOCAL_MACHINE,
-        L"HARDWARE\\DESCRIPTION\\System\\CentralProcessor\\0", 0, KEY_READ, &key);
+        L"HARDWARE\\DESCRIPTION\\System\\CentralProcessor\\0", 0, KEY_READ,	&key);
 
     if (r != ERROR_SUCCESS) {
-    
+
         wprintf(L"RegOpenKeyExW() failed %ld", GetLastError());
-        return 1;
+    	return 1;
     }
 
     r = RegQueryValueExW(key, L"~MHz", NULL, NULL, (LPBYTE) &mhz, &BufSize);
 
     if (r != ERROR_SUCCESS) {
-    
+
         wprintf(L"RegQueryValueExW() failed %ld", GetLastError());
         return 1;
     }
 
     wprintf(L"CPU speed: %lu MHz\n", mhz);
+
+    r = RegCloseKey(key);
+
+    if (r != ERROR_SUCCESS) {
+
+        wprintf(L"Failed to close registry handle %ld", GetLastError());
+        return 1;
+    }
     
     return 0;
 }