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From: wangyunjian <wangyunjian@huawei.com>
To: <dev@dpdk.org>
Cc: <linville@tuxdriver.com>, <jerry.lilijun@huawei.com>,
	<xudingke@huawei.com>, Yunjian Wang <wangyunjian@huawei.com>,
	<stable@dpdk.org>
Subject: [dpdk-dev] [PATCH 3/3] net/af_packet: fix wrong munmap on init failure
Date: Mon, 6 Jul 2020 20:28:02 +0800	[thread overview]
Message-ID: <e4ebc289269ab87d0fa77e9da8f79131e34070ee.1594037787.git.wangyunjian@huawei.com> (raw)
In-Reply-To: <cover.1594037787.git.wangyunjian@huawei.com>

From: Yunjian Wang <wangyunjian@huawei.com>

Add a missing available check and fix the wrong address passed
to munmap on init failure.

Fixes: dd6590fe2fd7 ("af_packet: fix possible memory leak")
Cc: stable@dpdk.org

Signed-off-by: Yunjian Wang <wangyunjian@huawei.com>
---
 drivers/net/af_packet/rte_eth_af_packet.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/net/af_packet/rte_eth_af_packet.c b/drivers/net/af_packet/rte_eth_af_packet.c
index be3fabb..4d2e1f6 100644
--- a/drivers/net/af_packet/rte_eth_af_packet.c
+++ b/drivers/net/af_packet/rte_eth_af_packet.c
@@ -843,8 +843,9 @@ struct pmd_internals {
 	if (qsockfd != -1)
 		close(qsockfd);
 	for (q = 0; q < nb_queues; q++) {
-		munmap((*internals)->rx_queue[q].map,
-		       2 * req->tp_block_size * req->tp_block_nr);
+		if ((*internals)->rx_queue[q].map != MAP_FAILED)
+			munmap((*internals)->rx_queue[q].map,
+			       2 * req->tp_block_size * req->tp_block_nr);
 
 		rte_free((*internals)->rx_queue[q].rd);
 		rte_free((*internals)->tx_queue[q].rd);
-- 
1.8.3.1



  parent reply	other threads:[~2020-07-06 12:28 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-07-06 12:26 [dpdk-dev] [PATCH 0/3] fixes for af_packet driver wangyunjian
2020-07-06 12:27 ` [dpdk-dev] [PATCH 1/3] net/af_packet: fix check of file descriptors wangyunjian
2020-07-06 12:27 ` [dpdk-dev] [PATCH 2/3] net/af_packet: fix mem leak on init failure wangyunjian
2020-07-06 12:28 ` wangyunjian [this message]
2020-07-14 14:58 ` [dpdk-dev] [PATCH 0/3] fixes for af_packet driver Ferruh Yigit

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