From b670bde0b2497966d76154cfb9706c38cf8348f9 Mon Sep 17 00:00:00 2001
From: Vasiliy Kulikov <segooon@gmail.com>
Date: Sun, 5 Sep 2010 22:32:22 +0400
Subject: [PATCH] tty_io: check return code of tty_register_device

Function tty_register_device may return ERR_PTR(...). Check for it.

Signed-off-by: Vasiliy Kulikov <segooon@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Reading git-format-patch failed