[dpdk-dev] [PATCH v2] mempool: Free memzone if mempool populate phys fails

[Hemant Agrawal]

From: Nipun Gupta <nipun.gupta at nxp.com>

This patch fixes the issue of memzone not being freed incase the
rte_mempool_populate_phys fails in the rte_mempool_populate_default

This issue was identified when testing with OVS ~2.6
- configure the system with low memory (e.g. < 500 MB)
- add bridge and dpdk interfaces
- delete brigde
- keep on repeating the above sequence.

Fixes: d1d914ebbc25 ("mempool: allocate in several memory chunks by default")

Signed-off-by: Nipun Gupta <nipun.gupta at nxp.com>
---
 lib/librte_mempool/rte_mempool.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/lib/librte_mempool/rte_mempool.c b/lib/librte_mempool/rte_mempool.c
index e94e56f..aa513b9 100644
--- a/lib/librte_mempool/rte_mempool.c
+++ b/lib/librte_mempool/rte_mempool.c
@@ -578,8 +578,10 @@ rte_mempool_populate_default(struct rte_mempool *mp)
 				mz->len, pg_sz,
 				rte_mempool_memchunk_mz_free,
 				(void *)(uintptr_t)mz);
-		if (ret < 0)
+		if (ret < 0) {
+			rte_memzone_free(mz);
 			goto fail;
+		}
 	}
 
 	return mp->size;
-- 
1.9.1