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Date: Mon, 4 Feb 2008 18:56:54 +0100
From: Erik Mouw <mouw@...linux.org>
To: Jeff Garzik <jgarzik@...ox.com>
Cc: netdev@...r.kernel.org,
"Waskiewicz Jr, Peter P" <peter.p.waskiewicz.jr@...el.com>,
jamal <hadi@...erus.ca>
Subject: [PATCH] xircom_cb should return NETDEV_TX_BUSY when there are no
descriptors available
Hi,
Changes in other networking paths uncovered a bug in the xircom_cb
driver which made the kernel spew lots of the following error messages:
BUG eth1 code -5 qlen 0
It turned out that the driver returned -EIO when there was no
descriptor available for sending packets. It should return
NETDEV_TX_BUSY instead. This was discussed on the netdev list before,
see http://thread.gmane.org/gmane.linux.network/84603 .
Signed-off-by: Erik Mouw <mouw@...linux.org>
diff --git a/drivers/net/tulip/xircom_cb.c b/drivers/net/tulip/xircom_cb.c
index 8fc7274..6b93d01 100644
--- a/drivers/net/tulip/xircom_cb.c
+++ b/drivers/net/tulip/xircom_cb.c
@@ -441,7 +441,7 @@ static int xircom_start_xmit(struct sk_buff *skb, struct net_device *dev)
spin_unlock_irqrestore(&card->lock,flags);
trigger_transmit(card);
- return -EIO;
+ return NETDEV_TX_BUSY;
}
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