--- local_tree.orig/drivers/usb/core/devio.c 2004-07-26 00:23:41.914115079 +0200
+++ local_tree/drivers/usb/core/devio.c 2004-07-26 00:31:47.183662802 +0200
@@ -1134,8 +1134,14 @@
return -EFAULT;
if (ds.signr != 0 && (ds.signr < SIGRTMIN || ds.signr > SIGRTMAX))
return -EINVAL;
+ down(&ps->dev->serialize);
+ if (!connected(ps->dev)) {
+ up(&ps->dev->serialize);
+ return -ENODEV;
+ }
ps->discsignr = ds.signr;
ps->disccontext = ds.context;
+ up(&ps->dev->serialize);
return 0;
}
@@ -1351,14 +1357,8 @@
break;
case USBDEVFS_DISCSIGNAL:
- down(&dev->serialize);
- if (!connected(dev)) {
- up(&dev->serialize);
- return -ENODEV;
- }
snoop(&dev->dev, "%s: DISCSIGNAL\n", __FUNCTION__);
ret = proc_disconnectsignal(ps, p);
- up(&dev->serialize);
break;
case USBDEVFS_CLAIMINTERFACE:
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