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-rw-r--r--include/net/pkt_cls.h7
1 files changed, 5 insertions, 2 deletions
diff --git a/include/net/pkt_cls.h b/include/net/pkt_cls.h
index 6dd009e10e5d..2e4b8e436d25 100644
--- a/include/net/pkt_cls.h
+++ b/include/net/pkt_cls.h
@@ -557,13 +557,16 @@ static inline int tcf_valid_offset(const struct sk_buff *skb,
#include <net/net_namespace.h>
static inline int
-tcf_change_indev(struct net *net, struct nlattr *indev_tlv)
+tcf_change_indev(struct net *net, struct nlattr *indev_tlv,
+ struct netlink_ext_ack *extack)
{
char indev[IFNAMSIZ];
struct net_device *dev;
- if (nla_strlcpy(indev, indev_tlv, IFNAMSIZ) >= IFNAMSIZ)
+ if (nla_strlcpy(indev, indev_tlv, IFNAMSIZ) >= IFNAMSIZ) {
+ NL_SET_ERR_MSG(extack, "Interface name too long");
return -EINVAL;
+ }
dev = __dev_get_by_name(net, indev);
if (!dev)
return -ENODEV;