[dpdk-dev] [PATCH v4 3/3] ethdev: check if queue setupped when getting queue info

[Wei Hu (Xavier)]

From: "Wei Hu (Xavier)" <xavier.huwei at huawei.com>

This patch adds checking whether the related Tx or Rx queue has been
setuped in the rte_eth_rx_queue_info_get and rte_eth_tx_queue_info_get
API function to avoid illegal address access.

Signed-off-by: Wei Hu (Xavier) <xavier.huwei at huawei.com>
---
 lib/librte_ethdev/rte_ethdev.c | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/lib/librte_ethdev/rte_ethdev.c b/lib/librte_ethdev/rte_ethdev.c
index 7858ad5f1..0503c7929 100644
--- a/lib/librte_ethdev/rte_ethdev.c
+++ b/lib/librte_ethdev/rte_ethdev.c
@@ -4670,6 +4670,14 @@ rte_eth_rx_queue_info_get(uint16_t port_id, uint16_t queue_id,
 		return -EINVAL;
 	}
 
+	if (dev->data->rx_queues[queue_id] == NULL) {
+		RTE_ETHDEV_LOG(ERR,
+			       "Rx queue %"PRIu16" of device with port_id=%"
+			       PRIu16" has not been setuped\n",
+			       queue_id, port_id);
+		return -EINVAL;
+	}
+
 	if (rte_eth_dev_is_rx_hairpin_queue(dev, queue_id)) {
 		RTE_ETHDEV_LOG(INFO,
 			"Can't get hairpin Rx queue %"PRIu16" info of device with port_id=%"PRIu16"\n",
@@ -4701,6 +4709,14 @@ rte_eth_tx_queue_info_get(uint16_t port_id, uint16_t queue_id,
 		return -EINVAL;
 	}
 
+	if (dev->data->tx_queues[queue_id] == NULL) {
+		RTE_ETHDEV_LOG(ERR,
+			       "Tx queue %"PRIu16" of device with port_id=%"
+			       PRIu16" has not been setuped\n",
+			       queue_id, port_id);
+		return -EINVAL;
+	}
+
 	if (rte_eth_dev_is_tx_hairpin_queue(dev, queue_id)) {
 		RTE_ETHDEV_LOG(INFO,
 			"Can't get hairpin Tx queue %"PRIu16" info of device with port_id=%"PRIu16"\n",
-- 
2.27.0