Commit 7858dbb367 for qemu.org

commit 7858dbb36710edbb9697286a925e170effd9e879
Author: Christian Schoenebeck <qemu_oss@crudebyte.com>
Date:   Fri Jul 3 17:38:10 2026 +0200

    tests/9p: prevent potential error in do_local_xattr_limit()

    The local fs backend driver tests require that a dummy file is
    created on the host side before running the xattr limit tests,
    otherwise the test will fail because the file is expected to exist.

    The original call of g_file_set_contents() didn't check its
    return value, which might cause subsequent test checks to fail,
    making it harder to identify the root cause.

    Fix this by simply wrapping the call into a g_assert().

    Fixes: 04a62cdfe873 ("tests/9p: add 3 xattr FID limit test cases (local fs driver)")
    CID: 1660926
    Tested-by: Philippe Mathieu-Daudé <philmd@oss.qualcomm.com>
    Reviewed-by: Pierrick Bouvier <pierrick.bouvier@oss.qualcomm.com>
    Reviewed-by: Philippe Mathieu-Daudé <philmd@oss.qualcomm.com>
    Link: https://lore.kernel.org/qemu-devel/E1wfg2F-001Sfn-Rr@kylie.crudebyte.com
    Signed-off-by: Christian Schoenebeck <qemu_oss@crudebyte.com>

diff --git a/tests/qtest/virtio-9p-test.c b/tests/qtest/virtio-9p-test.c
index cfd3c02da4..692a0e8e3f 100644
--- a/tests/qtest/virtio-9p-test.c
+++ b/tests/qtest/virtio-9p-test.c
@@ -402,7 +402,7 @@ static void do_local_xattr_limit(QVirtio9P *v9p, int max_xattr)
     /*
      * this file must be created for the test to work with the 'local' fs driver
      */
-    g_file_set_contents(test_file, "", 0, NULL);
+    g_assert(g_file_set_contents(test_file, "", 0, NULL));

     /* the actual test code shared with the 'synth' fs driver tests */
     do_xattr_limit(v9p, max_xattr, false);