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-rw-r--r--net/llc/af_llc.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/net/llc/af_llc.c b/net/llc/af_llc.c
index a75b8f2aab19..0607cd3fd12c 100644
--- a/net/llc/af_llc.c
+++ b/net/llc/af_llc.c
@@ -296,6 +296,12 @@ static int llc_ui_bind(struct socket *sock, struct sockaddr *uaddr, int addrlen)
rc = -EAFNOSUPPORT;
if (unlikely(addr->sllc_family != AF_LLC))
goto out;
+ rc = -ENODEV;
+ rtnl_lock();
+ llc->dev = dev_getbyhwaddr(addr->sllc_arphrd, addr->sllc_mac);
+ rtnl_unlock();
+ if (!llc->dev)
+ goto out;
if (!addr->sllc_sap) {
rc = -EUSERS;
addr->sllc_sap = llc_ui_autoport();