The release function was using qp->stream after already
releasing it and the null pointer checking was missing.
Also since rte_free(NULL) is a no-op, remove unnecessary
checks for NULL.
Coverity issure: 340860
Fixes: dc49e6aa4879 ("compress/isal: add ISA-L compression functionality")
Cc: stable@dpdk.org
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Acked-by: Lee Daly <lee.daly@intel.com>
Acked-by: Fiona Trahe <fiona.trahe@intel.com>