Commit 1a98214f authored by Rémi Denis-Courmont's avatar Rémi Denis-Courmont Committed by David S. Miller
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Phonet: restore flow control credits when sending fails

Signed-off-by: default avatarRémi Denis-Courmont <>
Signed-off-by: default avatarDavid S. Miller <>
parent 1f0f6388
......@@ -834,6 +834,7 @@ static int pipe_skb_send(struct sock *sk, struct sk_buff *skb)
struct pep_sock *pn = pep_sk(sk);
struct pnpipehdr *ph;
int err;
if (pn_flow_safe(pn->tx_fc) &&
!atomic_add_unless(&pn->tx_credits, -1, 0)) {
......@@ -852,7 +853,10 @@ static int pipe_skb_send(struct sock *sk, struct sk_buff *skb)
ph->message_id = PNS_PIPE_DATA;
ph->pipe_handle = pn->pipe_handle;
return pn_skb_send(sk, skb, &pipe_srv);
err = pn_skb_send(sk, skb, &pipe_srv);
if (err && pn_flow_safe(pn->tx_fc))
return err;
static int pep_sendmsg(struct kiocb *iocb, struct sock *sk,
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