libqos: Change free function called in malloc

Reviewed-by: John Snow <jsnow@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Marc MarĂ­ <marc.mari.barcelo@gmail.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
diff --git a/tests/libqos/malloc.h b/tests/libqos/malloc.h
index 46f6000..5565381 100644
--- a/tests/libqos/malloc.h
+++ b/tests/libqos/malloc.h
@@ -32,7 +32,7 @@
 
 static inline void guest_free(QGuestAllocator *allocator, uint64_t addr)
 {
-    allocator->alloc(allocator, addr);
+    allocator->free(allocator, addr);
 }
 
 #endif