[LTP] [PATCH 1/1] tst_test: Fix tests using device without .filesystems

[Cyril Hrubis]

Hi!
> > +       fs = fs ? &dummy : fs;

This is a stupid typo, it should be fs = fs ? fs : &dummy instead.

> This looks more elegant, but I get coredump.
> I also think you need to have count_fs_descs() <= 1 and maybe define fs_type
> (not sure about it).

You need count_fs_descs() <= 1 but the fs type is used from the
tst_device structure instead. So the whole patch should be:

diff --git a/lib/tst_test.c b/lib/tst_test.c
index b49c248ae..c6ed5d562 100644
--- a/lib/tst_test.c
+++ b/lib/tst_test.c
@@ -1101,6 +1101,9 @@ static void prepare_device(struct tst_fs *fs)
 {
        const char *mnt_data;
        char buf[1024];
+       struct tst_fs dummy = {};
+
+       fs = fs ? fs: &dummy;

        const char *const extra[] = {fs->mkfs_size_opt, NULL};

@@ -1355,8 +1358,8 @@ static void do_setup(int argc, char *argv[])

                tdev.fs_type = default_fs_type();

-               if (!tst_test->all_filesystems && count_fs_descs() == 1)
-                       prepare_device(&tst_test->filesystems[0]);
+               if (!tst_test->all_filesystems && count_fs_descs() <= 1)
+                       prepare_device(tst_test->filesystems);
        }

        if (tst_test->needs_overlay && !tst_test->mount_device)



-- 
Cyril Hrubis
chrubis@suse.cz