Explicitly check return value in add_specific()
CID 357760 (#2 of 2): Negative array index write (NEGATIVE_RETURNS)
8. negative_returns: Using variable ret as an index to array sad->cnt_arr
Coverity issue: 357760
Fixes: b2ee269267 ("ipsec: add SAD add/delete/lookup implementation")
Cc: stable@dpdk.org
Signed-off-by: Vladimir Medvedkin <vladimir.medvedkin@intel.com>
Acked-by: Konstantin Ananyev <konstantin.ananyev@intel.com>