[PATCH 8/8] staging: et131x: Update tx trans_start on device close to prevent tx_timeout

Mark Einon
2011-08-23T22:42:42Z

Updating the tx trans_start before closing the device prevents a possible tx_timeout occuring during the closing process.
Tested on an ET1310 device.

Signed-off-by: Mark Einon <mark.einon@gmail.com>
---
drivers/staging/et131x/et131x_netdev.c | 15 +++++++++++----
1 files changed, 11 insertions(+), 4 deletions(-)

diff --git a/drivers/staging/et131x/et131x_netdev.c b/drivers/staging/et131x/et131x_netdev.c
index 70a0da3..7555a24 100644
--- a/drivers/staging/et131x/et131x_netdev.c
+++ b/drivers/staging/et131x/et131x_netdev.c
@@ -153,7 +153,7 @@ int et131x_open(struct net_device *netdev)
result = request_irq(netdev->irq, et131x_isr, IRQF_SHARED,
netdev->name, netdev);
if (result) {
- dev_err(&adapter->pdev->dev, "c ould not register IRQ %d\n",
+ dev_err(&adapter->pdev->dev, "could not register IRQ %d\n",
netdev->irq);
return result;
}
@@ -182,6 +182,9 @@ int et131x_close(struct net_device *netdev)
{
struct et131x_adapter *adapter = netdev_priv(netdev);

+ /* Save the timestamp for the TX watchdog, prevent a timeout */
+ netdev->trans_start = jiffies;
+
/* First thing is to stop the queue */
netif_stop_queue(netdev);

@@ -449,6 +452,10 @@ void et131x_tx_timeout(struct net_device *netdev)
struct tcb *tcb;
unsigned long flags;

+ /* If the device is closed, ignore the timeout */
+ if (~(adapter->flags & fMP_ADAPTER_INTERRUPT_IN_USE));
+ return;
+
/* Any nonrecoverable hardware error?
* Checks adapter->flags for any failure in phy reading
*/
@@ -685,12 +692,12 @@ struct net_device *et131x_device_alloc(void)
return NULL;
}

- /* Setup the function registration table (and other data) for a
+ /*
+ * Setup the function registration table (and other data) for a
* net_device
*/
-
netdev->watchdog_timeo = ET131X_TX_TIMEOUT;
- netdev->netdev_ops = &et131x_netdev_ops;
+ netdev->netdev_ops = &et131x_netdev_ops;

/* netdev->ethtool_ops = &et131x_ethtool_ops; */

--
1.7.6