From 7e12e675c17982a8b3cc91314a68f4c4d1bceb92 Mon Sep 17 00:00:00 2001
From: Jingchang Lu <jingchang.lu@freescale.com>
Date: Tue, 21 Oct 2014 16:50:21 +0800
Subject: [PATCH] serial: of-serial: fix uninitialized kmalloc variable

The info pointer points to an uninitialized kmalloced space.
If a device doesn't have clk property, then info->clk may
have unpredicated value and cause call trace. So use kzalloc
to make sure it is NULL initialized.

Signed-off-by: Jingchang Lu <jingchang.lu@freescale.com>
Acked-by: Arnd Bergmann <arnd@arndb.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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