serial: of-serial: fix uninitialized kmalloc variable
authorJingchang Lu <jingchang.lu@freescale.com>
Tue, 21 Oct 2014 08:50:21 +0000 (16:50 +0800)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Thu, 6 Nov 2014 04:12:02 +0000 (20:12 -0800)
commit7e12e675c17982a8b3cc91314a68f4c4d1bceb92
treefac5e093a77324a06830339e4ca8d2dee0d4fabb
parent9e326f78713a4421fe11afc2ddeac07698fac131
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>
drivers/tty/serial/of_serial.c