[dpdk-dev] [PATCH v2] net/ixgbe: fix missing NULL point check

[Qi Zhang]

Add missing NULL point check inside ixgbe_pf_host_uninit, or it may cause
segment fault when detaching a device.

Fixes: cf80ba6e2038 ("net/ixgbe: add support for representor ports")
Cc: stable at dpdk.org

Signed-off-by: Qi Zhang <qi.z.zhang at intel.com>
---

v2: rebase

 drivers/net/ixgbe/ixgbe_pf.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ixgbe/ixgbe_pf.c b/drivers/net/ixgbe/ixgbe_pf.c
index c381acf44..4b833ffab 100644
--- a/drivers/net/ixgbe/ixgbe_pf.c
+++ b/drivers/net/ixgbe/ixgbe_pf.c
@@ -128,8 +128,6 @@ void ixgbe_pf_host_uninit(struct rte_eth_dev *eth_dev)
 
 	PMD_INIT_FUNC_TRACE();
 
-	vfinfo = IXGBE_DEV_PRIVATE_TO_P_VFDATA(eth_dev->data->dev_private);
-
 	RTE_ETH_DEV_SRIOV(eth_dev).active = 0;
 	RTE_ETH_DEV_SRIOV(eth_dev).nb_q_per_pool = 0;
 	RTE_ETH_DEV_SRIOV(eth_dev).def_vmdq_idx = 0;
@@ -139,6 +137,10 @@ void ixgbe_pf_host_uninit(struct rte_eth_dev *eth_dev)
 	if (vf_num == 0)
 		return;
 
+	vfinfo = IXGBE_DEV_PRIVATE_TO_P_VFDATA(eth_dev->data->dev_private);
+	if (*vfinfo == NULL)
+		return;
+
 	ret = rte_eth_switch_domain_free((*vfinfo)->switch_domain_id);
 	if (ret)
 		PMD_INIT_LOG(WARNING, "failed to free switch domain: %d", ret);
-- 
2.13.6