From: Alexander Stein <alexander.stein@systec-electronic.com>
Date: Wed, 15 Jun 2011 22:08:55 +0000 (-0700)
Subject: drivers/tty/serial/pch_uart.c: don't oops if dmi_get_system_info returns NULL
X-Git-Tag: v3.0-rc4~46
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=fb139dfeef9558a12ffdbf9e26951fd1a9304f3b;p=pandora-kernel.git

drivers/tty/serial/pch_uart.c: don't oops if dmi_get_system_info returns NULL

If dmi_get_system_info() returns NULL, pch_uart_init_port() will
dereferencea a zero pointer.

This oops was observed on an Atom based board which has no BIOS, but
a bootloder which doesn't provide DMI data.

Signed-off-by: Alexander Stein <alexander.stein@systec-electronic.com>
Cc: Greg KH <gregkh@suse.de>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

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