[PATCH] test/py: Rework how test_ums.py handles (not) having write enabled

[Tom Rini]

On Wed, 12 Feb 2025 16:24:00 -0600, Tom Rini wrote:

> With a newer pylint version we get a warning about how mounted_test_fn
> could be used before assignment. Evaluating the code, this can't happen
> because we check for "not have_writable_fs_partition" and return before
> moving to the part of the tests which use mounted_test_fn. However, we
> should instead have this written so that we only try this part of the
> test if have_writable_fs_partition is set, and this also fixes the
> warning. As part of this we also move test_f and mounted_test_fn to the
> section of code that already only does this if
> have_writable_fs_partition is set.
> 
> [...]

Applied to u-boot/next, thanks!

-- 
Tom