libqos: Change free function called in malloc

Reviewed-by: NJohn Snow <jsnow@redhat.com>
Reviewed-by: NStefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: NMarc Marí <marc.mari.barcelo@gmail.com>
Signed-off-by: NStefan Hajnoczi <stefanha@redhat.com>

tests/libqos/malloc.h

@@ -32,7 +32,7 @@ static inline uint64_t guest_alloc(QGuestAllocator *allocator, size_t size)
 
 static inline void guest_free(QGuestAllocator *allocator, uint64_t addr)
 {
-    allocator->alloc(allocator, addr);
+    allocator->free(allocator, addr);
 }
 
 #endif