tests/unit/test-vmstate: Avoid dynamic stack allocation

Use autofree heap allocation instead of variable-length
array on the stack.

Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20220819153931.3147384-12-peter.maydell@linaro.org

diff --git a/tests/unit/test-vmstate.c b/tests/unit/test-vmstate.c
index 72077b578007227ff2415d5f552efbc716e63a22..541bb4f63e369319115f9f86a75cc4aba7cb7ec2 100644 (file)
--- a/tests/unit/test-vmstate.c
+++ b/tests/unit/test-vmstate.c
@@ -87,17 +87,16 @@ static void save_buffer(const uint8_t *buf, size_t buf_size)
 static void compare_vmstate(const uint8_t *wire, size_t size)
 {
     QEMUFile *f = open_test_file(false);
-    uint8_t result[size];
+    g_autofree uint8_t *result = g_malloc(size);
 
     /* read back as binary */
 
-    g_assert_cmpint(qemu_get_buffer(f, result, sizeof(result)), ==,
-                    sizeof(result));
+    g_assert_cmpint(qemu_get_buffer(f, result, size), ==, size);
     g_assert(!qemu_file_get_error(f));
 
     /* Compare that what is on the file is the same that what we
        expected to be there */
-    SUCCESS(memcmp(result, wire, sizeof(result)));
+    SUCCESS(memcmp(result, wire, size));
 
     /* Must reach EOF */
     qemu_get_byte(f);