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| H A D | expr.c | a77f8184 Wed Apr 12 07:50:08 CDT 2023 Arnaldo Carvalho de Melo <acme@redhat.com> perf expr: Use zfree() to reduce chances of use after free
Do defensive programming by using zfree() to initialize freed pointers
to NULL, so that eventual use after free result in a NULL pointer deref
instead of more subtle behaviour.
Also remove one NULL test before free(), as it accepts a NULL arg and we
get one line shaved not doing it explicitely.
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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