diff --git a/drivers/net/ppp/ppp_generic.c b/drivers/net/ppp/ppp_generic.c
index 4b2971e2bf484a13b5e94ac3b9862224adac4c41..0d5cd705decb1fe19d15848125beabda40edf46b 100644
--- a/drivers/net/ppp/ppp_generic.c
+++ b/drivers/net/ppp/ppp_generic.c
@@ -2269,7 +2269,7 @@ static bool ppp_channel_bridge_input(struct channel *pch, struct sk_buff *skb)
        if (!pchb)
                goto out_rcu;
 
-       spin_lock(&pchb->downl);
+       spin_lock_bh(&pchb->downl);
        if (!pchb->chan) {
                /* channel got unregistered */
                kfree_skb(skb);
@@ -2281,7 +2281,7 @@ static bool ppp_channel_bridge_input(struct channel *pch, struct sk_buff *skb)
                kfree_skb(skb);
 
 outl:
-       spin_unlock(&pchb->downl);
+       spin_unlock_bh(&pchb->downl);
 out_rcu:
        rcu_read_unlock();