diff options
| author | Rémi Denis-Courmont <remi.denis-courmont@nokia.com> | 2010-09-29 22:33:50 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2010-09-30 17:57:30 -0700 |
| commit | e1a5964f0c32a75b17360cfc565d25aaedbff747 (patch) | |
| tree | 1929d1aa0b94147b017ae6a4ce6d60abe16c0946 /net/phonet/pep.c | |
| parent | 1020660189bb72ae25fd68733ee473d29b8604b5 (diff) | |
Phonet: restore flow control credits when sending fails
This patch restores the below flow control patch submitted by Rémi
Denis-Courmont, which accidentaly got lost due to Pipe controller patch
on Phonet.
commit 1a98214feef2221cd7c24b17cd688a5a9d85b2ea
Author: Rémi Denis-Courmont <remi.denis-courmont@nokia.com>
Date: Mon Aug 30 12:57:03 2010 +0000
Phonet: restore flow control credits when sending fails
Signed-off-by: Rémi Denis-Courmont <remi.denis-courmont@nokia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Kumar Sanghvi <kumar.sanghvi@stericsson.com>
Acked-by: Linus Walleij <linus.walleij@stericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/phonet/pep.c')
| -rw-r--r-- | net/phonet/pep.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/net/phonet/pep.c b/net/phonet/pep.c index 7bf23cf36b0..552fb665645 100644 --- a/net/phonet/pep.c +++ b/net/phonet/pep.c @@ -1288,6 +1288,7 @@ static int pipe_skb_send(struct sock *sk, struct sk_buff *skb) { struct pep_sock *pn = pep_sk(sk); struct pnpipehdr *ph; + int err; #ifdef CONFIG_PHONET_PIPECTRLR struct sockaddr_pn spn = { .spn_family = AF_PHONET, @@ -1314,10 +1315,15 @@ static int pipe_skb_send(struct sock *sk, struct sk_buff *skb) ph->message_id = PNS_PIPE_DATA; ph->pipe_handle = pn->pipe_handle; #ifdef CONFIG_PHONET_PIPECTRLR - return pn_skb_send(sk, skb, &spn); + err = pn_skb_send(sk, skb, &spn); #else - return pn_skb_send(sk, skb, &pipe_srv); + err = pn_skb_send(sk, skb, &pipe_srv); #endif + + if (err && pn_flow_safe(pn->tx_fc)) + atomic_inc(&pn->tx_credits); + return err; + } static int pep_sendmsg(struct kiocb *iocb, struct sock *sk, |