dev: fix null dereference of arg list

[vpp.git] / src / vnet / dev / api.c

diff --git a/src/vnet/dev/api.c b/src/vnet/dev/api.c
index 260bc7b..72811f5 100644 (file)
--- a/src/vnet/dev/api.c
+++ b/src/vnet/dev/api.c
@@ -90,9 +90,10 @@ vnet_dev_api_attach (vlib_main_t *vm, vnet_dev_api_attach_args_t *args)
     }
   dev->description = dev_desc;
 
-  for (vnet_dev_arg_t *a = driver->registration->args;
-       a->type != VNET_DEV_ARG_END; a++)
-    vec_add1 (dev->args, *a);
+  if (driver->registration->args)
+    for (vnet_dev_arg_t *a = driver->registration->args;
+        a->type != VNET_DEV_ARG_END; a++)
+      vec_add1 (dev->args, *a);
 
   if (args->args)
     {