[dpdk-dev] [PATCH] net/iavf: fix rx queue irqs resource leak

[dpdk-dev] [PATCH] net/iavf: fix rx queue irqs resource leak

[Qiming Chen]

In the iavf_config_rx_queues_irqs function, the memory pointed to by the
intr_handle->intr_vec and qv_map addresses is not released in the
subsequent hook branch, resulting in resource leakage.

Fixes: f593944fc988 ("net/iavf: enable IRQ mapping configuration for large VF")
Cc: stable@dpdk.org

Signed-off-by: Qiming Chen <chenqiming_huawei@163.com>
---
 drivers/net/iavf/iavf_ethdev.c | 18 ++++++++++++++----
 1 file changed, 14 insertions(+), 4 deletions(-)

diff --git a/drivers/net/iavf/iavf_ethdev.c b/drivers/net/iavf/iavf_ethdev.c
index 574cfe055e..280d53a651 100644
--- a/drivers/net/iavf/iavf_ethdev.c
+++ b/drivers/net/iavf/iavf_ethdev.c
@@ -674,7 +674,7 @@ static int iavf_config_rx_queues_irqs(struct rte_eth_dev *dev,
 	if (!qv_map) {
 		PMD_DRV_LOG(ERR, "Failed to allocate %d queue-vector map",
 				dev->data->nb_rx_queues);
-		return -1;
+		goto qv_map_alloc_err;
 	}
 
 	if (!dev->data->dev_conf.intr_conf.rxq ||
@@ -759,7 +759,7 @@ static int iavf_config_rx_queues_irqs(struct rte_eth_dev *dev,
 	if (!vf->lv_enabled) {
 		if (iavf_config_irq_map(adapter)) {
 			PMD_DRV_LOG(ERR, "config interrupt mapping failed");
-			return -1;
+			goto config_irq_map_err;
 		}
 	} else {
 		uint16_t num_qv_maps = dev->data->nb_rx_queues;
@@ -769,7 +769,7 @@ static int iavf_config_rx_queues_irqs(struct rte_eth_dev *dev,
 			if (iavf_config_irq_map_lv(adapter,
 					IAVF_IRQ_MAP_NUM_PER_BUF, index)) {
 				PMD_DRV_LOG(ERR, "config interrupt mapping for large VF failed");
-				return -1;
+				goto config_irq_map_err;
 			}
 			num_qv_maps -= IAVF_IRQ_MAP_NUM_PER_BUF;
 			index += IAVF_IRQ_MAP_NUM_PER_BUF;
@@ -777,10 +777,20 @@ static int iavf_config_rx_queues_irqs(struct rte_eth_dev *dev,
 
 		if (iavf_config_irq_map_lv(adapter, num_qv_maps, index)) {
 			PMD_DRV_LOG(ERR, "config interrupt mapping for large VF failed");
-			return -1;
+			goto config_irq_map_err;
 		}
 	}
 	return 0;
+
+config_irq_map_err:
+	rte_free(vf->qv_map);
+	vf->qv_map = NULL;
+
+qv_map_alloc_err:
+	rte_free(intr_handle->intr_vec);
+	intr_handle->intr_vec = NULL;
+
+	return -1;
 }
 
 static int
-- 
2.30.1.windows.1

Re: [dpdk-dev] [PATCH] net/iavf: fix rx queue irqs resource leak

[Zhang, Qi Z]

> -----Original Message-----
> From: dev <dev-bounces@dpdk.org> On Behalf Of Qiming Chen
> Sent: Friday, September 10, 2021 2:55 PM
> To: dev@dpdk.org
> Cc: Xing, Beilei <beilei.xing@intel.com>; Wu, Jingjing <jingjing.wu@intel.com>;
> Qiming Chen <chenqiming_huawei@163.com>; stable@dpdk.org
> Subject: [dpdk-dev] [PATCH] net/iavf: fix rx queue irqs resource leak
> 
> In the iavf_config_rx_queues_irqs function, the memory pointed to by the
> intr_handle->intr_vec and qv_map addresses is not released in the subsequent
> hook branch, resulting in resource leakage.
> 
> Fixes: f593944fc988 ("net/iavf: enable IRQ mapping configuration 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>

Applied to dpdk-next-net-intel.

Thanks
Qi