Use the new "kill_proc_info_as_uid()" for USB disconnect too

All the same issues - we can't just save the pointer to the thread, we
must save the pid/uid/euid combination.

Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/drivers/usb/core/usb.h b/drivers/usb/core/usb.h
index 83d48c8..e6504f3 100644
--- a/drivers/usb/core/usb.h
+++ b/drivers/usb/core/usb.h
@@ -52,7 +52,8 @@
 	struct list_head async_completed;
 	wait_queue_head_t wait;     /* wake up if a request completed */
 	unsigned int discsignr;
-	struct task_struct *disctask;
+	pid_t disc_pid;
+	uid_t disc_uid, disc_euid;
 	void __user *disccontext;
 	unsigned long ifclaimed;
 };