1 files changed, 2 insertions, 1 deletions

diff --git a/net/sched/cls_api.c b/net/sched/cls_api.c
index ddcf04b4ab43..b9d63d2246e6 100644
--- a/net/sched/cls_api.c
+++ b/net/sched/cls_api.c
@@ -23,7 +23,6 @@
 #include <linux/skbuff.h>
 #include <linux/init.h>
 #include <linux/kmod.h>
-#include <linux/err.h>
 #include <linux/slab.h>
 #include <net/net_namespace.h>
 #include <net/sock.h>
@@ -352,6 +351,8 @@ void tcf_block_put_ext(struct tcf_block *block, struct Qdisc *q,
 {
         struct tcf_chain *chain;
 
+        if (!block)
+                return;
         /* Hold a refcnt for all chains, except 0, so that they don't disappear
          * while we are iterating.
          */