netdev - [PATCH] net/irda/sh_irda: return to RX mode when TX error

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Message-id: <w3ppqs0ncyp.wl%kuninori.morimoto.gx@renesas.com>
Date:	Fri, 14 Jan 2011 16:47:42 +0900
From:	Kuninori Morimoto <kuninori.morimoto.gx@...esas.com>
To:	netdev@...r.kernel.org
Cc:	Samuel Ortiz <samuel@...tiz.org>,
	"David S. Miller" <davem@...emloft.net>
Subject: [PATCH] net/irda/sh_irda: return to RX mode when TX error

sh_irda can not use RX/TX in same time,
but this driver didn't return to RX mode when TX error occurred.
This patch care xmit error case to solve this issue.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@...esas.com>
---
 drivers/net/irda/sh_irda.c |   14 ++++++++++++--
 1 files changed, 12 insertions(+), 2 deletions(-)

diff --git a/drivers/net/irda/sh_irda.c b/drivers/net/irda/sh_irda.c
index 9e3f4f5..4488bd5 100644
--- a/drivers/net/irda/sh_irda.c
+++ b/drivers/net/irda/sh_irda.c
@@ -635,7 +635,7 @@ static int sh_irda_hard_xmit(struct sk_buff *skb, struct net_device *ndev)
 
 	ret = sh_irda_set_baudrate(self, speed);
 	if (ret < 0)
-		return ret;
+		goto sh_irda_hard_xmit_end;
 
 	self->tx_buff.len = 0;
 	if (skb->len) {
@@ -652,11 +652,21 @@ static int sh_irda_hard_xmit(struct sk_buff *skb, struct net_device *ndev)
 
 		sh_irda_write(self, IRTFLR, self->tx_buff.len);
 		sh_irda_write(self, IRTCTR, ARMOD | TE);
-	}
+	} else
+		goto sh_irda_hard_xmit_end;
 
 	dev_kfree_skb(skb);
 
 	return 0;
+
+sh_irda_hard_xmit_end:
+	sh_irda_set_baudrate(self, 9600);
+	netif_wake_queue(self->ndev);
+	sh_irda_rcv_ctrl(self, 1);
+	dev_kfree_skb(skb);
+
+	return ret;
+
 }
 
 static int sh_irda_ioctl(struct net_device *ndev, struct ifreq *ifreq, int cmd)
-- 
1.7.1

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