[dpdk-dev] [PATCH 3/5] lpm: fix missing free of lpm

Christian Ehrhardt christian.ehrhardt at canonical.com
Wed Mar 16 15:16:31 CET 2016


Fixing lpm6 regarding a similar issue showed that that in rte_lpm_free lpm
might not be freed if it didn't find a te (early return)

Acked-by: Bruce Richardson <bruce.richardson at intel.com>
Signed-off-by: Christian Ehrhardt <christian.ehrhardt at canonical.com>
---
 lib/librte_lpm/rte_lpm.c | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/lib/librte_lpm/rte_lpm.c b/lib/librte_lpm/rte_lpm.c
index ccaaa2a..2cc87b6 100644
--- a/lib/librte_lpm/rte_lpm.c
+++ b/lib/librte_lpm/rte_lpm.c
@@ -360,13 +360,10 @@ rte_lpm_free_v20(struct rte_lpm_v20 *lpm)
 		if (te->data == (void *) lpm)
 			break;
 	}
-	if (te == NULL) {
-		rte_rwlock_write_unlock(RTE_EAL_TAILQ_RWLOCK);
-		return;
+	if (te != NULL) {
+		TAILQ_REMOVE(lpm_list, te, next);
 	}
 
-	TAILQ_REMOVE(lpm_list, te, next);
-
 	rte_rwlock_write_unlock(RTE_EAL_TAILQ_RWLOCK);
 
 	rte_free(lpm);
-- 
2.7.0



More information about the dev mailing list