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From: Gaoxiang Liu <gaoxiangliu0@163.com>
To: Maxime Coquelin <maxime.coquelin@redhat.com>,
	Chenbo Xia <chenbo.xia@intel.com>
Cc: dev@dpdk.org, liugaoxiang@huawei.com,
	Gaoxiang Liu <gaoxiangliu0@163.com>,
	stable@dpdk.org
Subject: [dpdk-dev] [PATCH] net/virtio: fix repeated memory free of vq
Date: Fri, 30 Jul 2021 22:41:57 +0800	[thread overview]
Message-ID: <20210730144158.1981-1-gaoxiangliu0@163.com> (raw)

When virtio_init_queue returns error, the memory of vq is freed.
But the value of hw->vqs[queue_idx] does not restore.`
If hw->vqs[queue_idx] != NULL, the memory of vq is freed again
in virtio_free_queues.

Fixes: 69c80d4ef89b ("net/virtio: allocate queue at init stage")
Cc: stable@dpdk.org

Signed-off-by: Gaoxiang Liu <gaoxiangliu0@163.com>
---
 drivers/net/virtio/virtio_ethdev.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/virtio/virtio_ethdev.c b/drivers/net/virtio/virtio_ethdev.c
index 056830566..fc72d71cb 100644
--- a/drivers/net/virtio/virtio_ethdev.c
+++ b/drivers/net/virtio/virtio_ethdev.c
@@ -631,6 +631,7 @@ virtio_init_queue(struct rte_eth_dev *dev, uint16_t queue_idx)
 	rte_memzone_free(mz);
 free_vq:
 	rte_free(vq);
+	hw->vqs[queue_idx] = NULL;
 
 	return ret;
 }
-- 
2.32.0



                 reply	other threads:[~2021-07-30 14:42 UTC|newest]

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