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authorStephen Hemminger <shemminger@vyatta.com>2008-04-02 09:03:23 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2008-04-02 09:33:53 -0700
commit063a0b38a7e4ade79f00314c473d3c41a2c7eecf (patch)
treeec3e97f8a213864ecce8c167bdaa428f094b2be2
parent49115b7cb1483a14c557666b61fe81d3c23780d6 (diff)
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sky2: fix suspend/resume races
There are a couple of possible races on suspend/resume. First the driver needs to block new packets from being queued for Tx. The other less likely problem is the watchdog timer going off during resume. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
-rw-r--r--drivers/net/sky2.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/net/sky2.c b/drivers/net/sky2.c
index 54c6626..853bce0 100644
--- a/drivers/net/sky2.c
+++ b/drivers/net/sky2.c
@@ -4329,10 +4329,14 @@ static int sky2_suspend(struct pci_dev *pdev, pm_message_t state)
if (!hw)
return 0;
+ del_timer_sync(&hw->watchdog_timer);
+ cancel_work_sync(&hw->restart_work);
+
for (i = 0; i < hw->ports; i++) {
struct net_device *dev = hw->dev[i];
struct sky2_port *sky2 = netdev_priv(dev);
+ netif_device_detach(dev);
if (netif_running(dev))
sky2_down(dev);
@@ -4383,6 +4387,8 @@ static int sky2_resume(struct pci_dev *pdev)
for (i = 0; i < hw->ports; i++) {
struct net_device *dev = hw->dev[i];
+
+ netif_device_attach(dev);
if (netif_running(dev)) {
err = sky2_up(dev);
if (err) {