[dpdk-stable] patch 'net/ixgbe: fix missing null check on detach' has been queued to stable release 18.05.1

[Christian Ehrhardt]

Hi,

FYI, your patch has been queued to stable release 18.05.1

Note it hasn't been pushed to http://dpdk.org/browse/dpdk-stable yet.
It will be pushed if I get no objections before 08/01/18. So please
shout if anyone has objections.

Thanks.

Christian Ehrhardt <christian.ehrhardt at canonical.com>

---
>From eae0b860ceb2eb286a5e3bb1329bf90acfc6c625 Mon Sep 17 00:00:00 2001
From: Qi Zhang <qi.z.zhang at intel.com>
Date: Mon, 16 Jul 2018 20:47:04 +0800
Subject: [PATCH] net/ixgbe: fix missing null check on detach

[ upstream commit 1ec01cd0962abd1fe2f32322ff135ac708cb3b8d ]

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")

Signed-off-by: Qi Zhang <qi.z.zhang at intel.com>
Acked-by: Remy Horton <remy.horton at intel.com>
---
 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);
-- 
2.17.1