selftests/mm: hugetlb_madv_vs_map: fix TAP plan mismatches

The plan was raised from 1 to 3, but the HugeTLB setup check that may call
ksft_exit_skip() still runs after ksft_set_plan(), so a setup failure
reports one result against a plan of 3.  Move ksft_set_plan() below the
setup check.

Also, when the underflow check fails, or munmap() fails, test_underflow()
jumps to err_cleanup and exits without reporting the remaining results. 
Report the munmap() failure as a test result and skip the final
HugePages_Rsvd check in err_cleanup, so the output always contains the
planned 3 results.

Link: https://lore.kernel.org/20261004230018.190880-1-jaeyeon.lee.dev@gmail.com
Fixes: 827149aad495 ("selftests/mm: hugetlb_madv_vs_map: add underflow test")
Signed-off-by: Jaeyeon Lee <jaeyeon.lee.dev@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Acked-by: David Hildenbrand (Arm) <david@kernel.org>
Assisted-by: LLM
Cc: Guillaume Morin <guillaume@morinfr.org>
Cc: Lorenzo Stoakes <ljs@kernel.org>
Cc: Liam R. Howlett <liam@infradead.org>
Cc: Vlastimil Babka <vbabka@kernel.org>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Shuah Khan <shuah@kernel.org>
Cc: Breno Leitao <leitao@debian.org>

0 files changed, 0 insertions, 0 deletions