From: Liu Hua <sdu.liu@huawei.com>
Date: Thu, 27 Mar 2014 05:56:18 +0000 (+0100)
Subject: ARM: 8012/1: kdump: Avoid overflow when converting pfn to physaddr
X-Git-Tag: v3.2.61~6
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=64bf838ef253a6c5b05530461f2aee94bbfecc5b;p=pandora-kernel.git

ARM: 8012/1: kdump: Avoid overflow when converting pfn to physaddr

commit 8fad87bca7ac9737e413ba5f1656f1114a8c314d upstream.

When we configure CONFIG_ARM_LPAE=y, pfn << PAGE_SHIFT will
overflow if pfn >= 0x100000 in copy_oldmem_page.
So use __pfn_to_phys for converting.

Signed-off-by: Liu Hua <sdu.liu@huawei.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---

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