From 9199cd6d51737a4f1e5a3170ff3d1d38258243ee Mon Sep 17 00:00:00 2001 From: Daniel Mrzyglod Date: Wed, 27 Apr 2016 17:07:53 +0200 Subject: [PATCH] lpm6: fix possible garbage in lookup Fix issue reported by clang scan-build Value of pointer tbl_next was uninitialized. When function lookup_step() take else branch it may provide garbage into tbl = tbl_next; Fixes: 5c510e13a9cb ("lpm: add IPv6 support") Signed-off-by: Daniel Mrzyglod --- lib/librte_lpm/rte_lpm6.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/lib/librte_lpm/rte_lpm6.c b/lib/librte_lpm/rte_lpm6.c index ba4353cedf..32fdba01e8 100644 --- a/lib/librte_lpm/rte_lpm6.c +++ b/lib/librte_lpm/rte_lpm6.c @@ -601,7 +601,7 @@ int rte_lpm6_lookup(const struct rte_lpm6 *lpm, uint8_t *ip, uint8_t *next_hop) { const struct rte_lpm6_tbl_entry *tbl; - const struct rte_lpm6_tbl_entry *tbl_next; + const struct rte_lpm6_tbl_entry *tbl_next = NULL; int status; uint8_t first_byte; uint32_t tbl24_index; @@ -636,7 +636,7 @@ rte_lpm6_lookup_bulk_func(const struct rte_lpm6 *lpm, { unsigned i; const struct rte_lpm6_tbl_entry *tbl; - const struct rte_lpm6_tbl_entry *tbl_next; + const struct rte_lpm6_tbl_entry *tbl_next = NULL; uint32_t tbl24_index; uint8_t first_byte, next_hop; int status; -- 2.20.1