From 000caf4e871a9f27512ede9161a6d020bf6f8982 Mon Sep 17 00:00:00 2001
From: Oleg Hahm <oleg@hobbykeller.org>
Date: Fri, 11 Sep 2015 21:30:38 +0200
Subject: [PATCH] shell: exit early if no IPv6 interface is found

---
 sys/shell/commands/sc_netif.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/sys/shell/commands/sc_netif.c b/sys/shell/commands/sc_netif.c
index 2196fa692..00b1d0fa2 100644
--- a/sys/shell/commands/sc_netif.c
+++ b/sys/shell/commands/sc_netif.c
@@ -326,6 +326,11 @@ static void _netif_list(kernel_pid_t dev)
     }
 
 #ifdef MODULE_GNRC_IPV6_NETIF
+    if (entry == NULL) {
+        puts("");
+        return;
+    }
+
     printf("Link type: %s", (entry->flags & GNRC_IPV6_NETIF_FLAGS_IS_WIRED) ?
            "wired" : "wireless");
     printf("\n           ");