rdma: fix crash when failing to read pci addr on create

Type: fix

Change-Id: I543e2e5976cb384b81278a7ec98a0a6ab1612438
Signed-off-by: Benoît Ganne <bganne@cisco.com>
(cherry picked from commit 0dd97d473bc0c958d9fcea508e1f5122a137b23f)

diff --git a/src/plugins/rdma/device.c b/src/plugins/rdma/device.c
index ea6d278..6c48a97 100644 (file)
--- a/src/plugins/rdma/device.c
+++ b/src/plugins/rdma/device.c
@@ -566,6 +566,9 @@ sysfs_path_to_pci_addr (char *path, vlib_pci_addr_t * addr)
   u8 *s;
 
   s = clib_sysfs_link_to_name (path);
+  if (!s)
+    return 0;
+
   unformat_init_string (&in, (char *) s, strlen ((char *) s));
   rv = unformat (&in, "%U", unformat_vlib_pci_addr, addr);
   unformat_free (&in);