From: Tomasz Duszynski <tdu@semihalf.com>
Date: Mon, 16 Oct 2017 11:45:47 +0000 (+0200)
Subject: examples/kni: check PCI info not NULL before reading
X-Git-Tag: spdx-start~1230
X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=1e02d735c1446705592ca8d89b4b500f9492a8ef;p=dpdk.git

examples/kni: check PCI info not NULL before reading

Since virtual devices, i.e mrvl net pmd, do not touch pci_dev
dereferencing it will cause segmentation fault as by default
it's set to NULL in rte_eth_dev_info_get().

Signed-off-by: Tomasz Duszynski <tdu@semihalf.com>
Acked-by: Ferruh Yigit <ferruh.yigit@intel.com>
---

diff --git a/examples/kni/main.c b/examples/kni/main.c
index edf3fb1b0d..ddecc0ee4a 100644
--- a/examples/kni/main.c
+++ b/examples/kni/main.c
@@ -805,8 +805,11 @@ kni_alloc(uint16_t port_id)
 
 			memset(&dev_info, 0, sizeof(dev_info));
 			rte_eth_dev_info_get(port_id, &dev_info);
-			conf.addr = dev_info.pci_dev->addr;
-			conf.id = dev_info.pci_dev->id;
+
+			if (dev_info.pci_dev) {
+				conf.addr = dev_info.pci_dev->addr;
+				conf.id = dev_info.pci_dev->id;
+			}
 
 			memset(&ops, 0, sizeof(ops));
 			ops.port_id = port_id;