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

Christian Ehrhardt christian.ehrhardt at canonical.com
Wed Mar 16 13:33:49 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 | 8 ++------
 1 file changed, 2 insertions(+), 6 deletions(-)

diff --git a/lib/librte_lpm/rte_lpm.c b/lib/librte_lpm/rte_lpm.c
index ccaaa2a..d5fa1f8 100644
--- a/lib/librte_lpm/rte_lpm.c
+++ b/lib/librte_lpm/rte_lpm.c
@@ -360,12 +360,8 @@ 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;
-	}
-
-	TAILQ_REMOVE(lpm_list, te, next);
+	if (te != NULL)
+		TAILQ_REMOVE(lpm_list, te, next);
 
 	rte_rwlock_write_unlock(RTE_EAL_TAILQ_RWLOCK);
 
-- 
2.7.0



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