[dpdk-dev] [PATCH] kni: fix crash for KNI interface remove

[Ferruh Yigit]

Removing KNI interface that has no PCI driver for ethtool support cause
kernel crash.

Fixes: 109febfe58f9 ("net/igb: move PCI device IDs from EAL")
Fixes: 221fba3b987c ("net/ixgbe: move PCI device IDs from EAL")

Signed-off-by: Ferruh Yigit <ferruh.yigit at intel.com>
---
 lib/librte_eal/linuxapp/kni/kni_misc.c | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/lib/librte_eal/linuxapp/kni/kni_misc.c 
b/lib/librte_eal/linuxapp/kni/kni_misc.c
index 41a331f..acb961f 100644
--- a/lib/librte_eal/linuxapp/kni/kni_misc.c
+++ b/lib/librte_eal/linuxapp/kni/kni_misc.c
@@ -355,10 +355,12 @@ kni_dev_remove(struct kni_dev *dev)
        if (!dev)
                return -ENODEV;

-       if (pci_match_id(ixgbe_pci_tbl, dev->pci_dev))
-               ixgbe_kni_remove(dev->pci_dev);
-       else if (pci_match_id(igb_pci_tbl, dev->pci_dev))
-               igb_kni_remove(dev->pci_dev);
+       if (dev->pci_dev) {
+               if (pci_match_id(ixgbe_pci_tbl, dev->pci_dev))
+                       ixgbe_kni_remove(dev->pci_dev);
+               else if (pci_match_id(igb_pci_tbl, dev->pci_dev))
+                       igb_kni_remove(dev->pci_dev);
+       }

        if (dev->net_dev) {
                unregister_netdev(dev->net_dev);
-- 
2.7.4