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net/iavf: fix mbuf leak

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In the iavf_dev_rx_queue_start function, if the iavf_switch_queue
or iavf_switch_queue_lv function fails, the previously applied mbuf
is not released, resulting in leakage. The patch fixes the problem.

Fixes: 9cf9c02bf6 ("net/iavf: add enable/disable queues for large VF")
Cc: stable@dpdk.org

Signed-off-by: Qiming Chen <chenqiming_huawei@163.com>
Acked-by: Qi Zhang <qi.z.zhang@intel.com>
This commit is contained in:
Qiming Chen 2021-09-16 22:04:00 +08:00 committed by Qi Zhang
parent 437dbd2fd4
commit 1028e5bc36
1 changed files with 9 additions and 3 deletions
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12
drivers/net/iavf/iavf_rxtx.c
View File

@ -278,11 +278,15 @@ alloc_rxq_mbufs(struct iavf_rx_queue *rxq)
volatile union iavf_rx_desc *rxd;
struct rte_mbuf *mbuf = NULL;
uint64_t dma_addr;
uint16_t i;
uint16_t i, j;
for (i = 0; i < rxq->nb_rx_desc; i++) {
mbuf = rte_mbuf_raw_alloc(rxq->mp);
if (unlikely(!mbuf)) {
for (j = 0; j < i; j++) {
rte_pktmbuf_free_seg(rxq->sw_ring[j]);
rxq->sw_ring[j] = NULL;
}
PMD_DRV_LOG(ERR, "Failed to allocate mbuf for RX");
return -ENOMEM;
}
@ -852,12 +856,14 @@ iavf_dev_rx_queue_start(struct rte_eth_dev *dev, uint16_t rx_queue_id)
else
err = iavf_switch_queue_lv(adapter, rx_queue_id, true, true);
if (err)
if (err) {
release_rxq_mbufs(rxq);
PMD_DRV_LOG(ERR, "Failed to switch RX queue %u on",
rx_queue_id);
else
} else {
dev->data->rx_queue_state[rx_queue_id] =
RTE_ETH_QUEUE_STATE_STARTED;
}
return err;
}