Merge with master.kernel.org:/pub/scm/linux/kernel/git/torvalds/linux-2.6.git

1 files changed, 41 insertions, 0 deletions

diff --git a/drivers/usb/net/zd1201.c b/drivers/usb/net/zd1201.c
index 341ae5f732dd..3b387b005739 100644
--- a/drivers/usb/net/zd1201.c
+++ b/drivers/usb/net/zd1201.c
@@ -1884,12 +1884,53 @@ static void zd1201_disconnect(struct usb_interface *interface)
 	kfree(zd);
 }
 
+#ifdef CONFIG_PM
+
+static int zd1201_suspend(struct usb_interface *interface,
+			   pm_message_t message)
+{
+	struct zd1201 *zd = usb_get_intfdata(interface);
+
+	netif_device_detach(zd->dev);
+
+	zd->was_enabled = zd->mac_enabled;
+
+	if (zd->was_enabled)
+		return zd1201_disable(zd);
+	else
+		return 0;
+}
+
+static int zd1201_resume(struct usb_interface *interface)
+{
+	struct zd1201 *zd = usb_get_intfdata(interface);
+
+	if (!zd || !zd->dev)
+		return -ENODEV;
+
+	netif_device_attach(zd->dev);
+
+	if (zd->was_enabled)
+		return zd1201_enable(zd);
+	else
+		return 0;
+}
+
+#else
+
+#define zd1201_suspend NULL
+#define zd1201_resume  NULL
+
+#endif
+
 static struct usb_driver zd1201_usb = {
 	.owner = THIS_MODULE,
 	.name = "zd1201",
 	.probe = zd1201_probe,
 	.disconnect = zd1201_disconnect,
 	.id_table = zd1201_table,
+	.suspend = zd1201_suspend,
+	.resume = zd1201_resume,
 };
 
 static int __init zd1201_init(void)