[LTP] [PATCH v1] Fix: dirtyc0w_shmem child process exit with error due to uninitialized lib_pid

[Li Wang]

It is worth mentioning that our kernel CI report shows that
this commit also introduced an issue that incorrectly identified
TCONF as TFAIL. This caused quite a few test cases (TCONF)
to be reported as failures.

I confirmed that the below patch can fix this as well.
https://lists.linux.it/pipermail/ltp/2025-May/043493.html


-- 
Regards,
Li Wang