X-Git-Url: http://pilppa.org/gitweb/gitweb.cgi?a=blobdiff_plain;f=drivers%2Fusb%2Fusb-skeleton.c;h=c815a40e167f33f7427f0c908514e0e93b685b7d;hb=d1417862d7355f0b395d83f2884afd614b086695;hp=59973aecd96828269bf7b72d6e6575726a111ee0;hpb=758f7e161b1da3039368bf7180b9d9f4c33453da;p=linux-2.6-omap-h63xx.git

diff --git a/drivers/usb/usb-skeleton.c b/drivers/usb/usb-skeleton.c
index 59973aecd96..c815a40e167 100644
--- a/drivers/usb/usb-skeleton.c
+++ b/drivers/usb/usb-skeleton.c
@@ -125,6 +125,7 @@ static int skel_open(struct inode *inode, struct file *file)
 
 	/* save our object in the file's private structure */
 	file->private_data = dev;
+	mutex_unlock(&dev->io_mutex);
 
 exit:
 	return retval;
@@ -467,12 +468,35 @@ static int skel_resume (struct usb_interface *intf)
 	return 0;
 }
 
+static int skel_pre_reset(struct usb_interface *intf)
+{
+	struct usb_skel *dev = usb_get_intfdata(intf);
+
+	mutex_lock(&dev->io_mutex);
+	skel_draw_down(dev);
+
+	return 0;
+}
+
+static int skel_post_reset(struct usb_interface *intf)
+{
+	struct usb_skel *dev = usb_get_intfdata(intf);
+
+	/* we are sure no URBs are active - no locking needed */
+	dev->errors = -EPIPE;
+	mutex_unlock(&dev->io_mutex);
+
+	return 0;
+}
+
 static struct usb_driver skel_driver = {
 	.name =		"skeleton",
 	.probe =	skel_probe,
 	.disconnect =	skel_disconnect,
 	.suspend =	skel_suspend,
 	.resume =	skel_resume,
+	.pre_reset =	skel_pre_reset,
+	.post_reset =	skel_post_reset,
 	.id_table =	skel_table,
 	.supports_autosuspend = 1,
 };