From: Olivier Matz <olivier.matz@6wind.com>
Date: Mon, 11 Jul 2016 10:20:26 +0000 (+0200)
Subject: mbuf: set errno on pool creation error
X-Git-Tag: spdx-start~6180
X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=996e86bf2a74b671225d7a59c0d1eddbec881401;p=dpdk.git

mbuf: set errno on pool creation error

In rte_pktmbuf_pool_create(), the rte_errno variable was not always
set on failure.

Fixes: 152ca517900b ("mbuf: use default mempool handler from config")

Signed-off-by: Olivier Matz <olivier.matz@6wind.com>
---

diff --git a/lib/librte_mbuf/rte_mbuf.c b/lib/librte_mbuf/rte_mbuf.c
index 601e528225..4846b89716 100644
--- a/lib/librte_mbuf/rte_mbuf.c
+++ b/lib/librte_mbuf/rte_mbuf.c
@@ -156,6 +156,7 @@ rte_pktmbuf_pool_create(const char *name, unsigned n,
 	struct rte_mempool *mp;
 	struct rte_pktmbuf_pool_private mbp_priv;
 	unsigned elt_size;
+	int ret;
 
 	if (RTE_ALIGN(priv_size, RTE_MBUF_PRIV_ALIGN) != priv_size) {
 		RTE_LOG(ERR, MBUF, "mbuf priv_size=%u is not aligned\n",
@@ -181,8 +182,10 @@ rte_pktmbuf_pool_create(const char *name, unsigned n,
 	}
 	rte_pktmbuf_pool_init(mp, &mbp_priv);
 
-	if (rte_mempool_populate_default(mp) < 0) {
+	ret = rte_mempool_populate_default(mp);
+	if (ret < 0) {
 		rte_mempool_free(mp);
+		rte_errno = -ret;
 		return NULL;
 	}