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tests/qtest: vhost-user-test: Fix [-Werror=format-overflow=] build warning

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When tmpfs is NULL, a build warning is seen with GCC 9.3.0.
It's strange that GCC 11.2.0 on Ubuntu 22.04 does not catch this,
neither did the QEMU CI.

While we are here, improve the error message as well.

Reported-by: Shengjiang Wu <shengjiang.wu@windriver.com>
Fixes: e6efe236c1 ("tests/qtest: vhost-user-test: Avoid using hardcoded /tmp")
Signed-off-by: Bin Meng <bin.meng@windriver.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20221017132023.2228641-2-bmeng.cn@gmail.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
This commit is contained in:
Bin Meng 2022-10-17 21:20:23 +08:00 committed by Laurent Vivier
parent b1f6208cf9
commit 1c324bf908
1 changed files with 2 additions and 2 deletions
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4
tests/qtest/vhost-user-test.c
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@ -571,8 +571,8 @@ static TestServer *test_server_new(const gchar *name,
tmpfs = g_dir_make_tmp("vhost-test-XXXXXX", &err);
if (!tmpfs) {
g_test_message("g_dir_make_tmp on path (%s): %s", tmpfs,
err->message);
g_test_message("Can't create temporary directory in %s: %s",
g_get_tmp_dir(), err->message);
g_error_free(err);
}
g_assert(tmpfs);