From: Wu Fengguang <fengguang.wu@intel.com>
Date: Fri, 3 Sep 2010 09:04:07 +0000 (+0800)
Subject: x86, mm: fix uninitialized addr in kernel_physical_mapping_init()
X-Git-Tag: firefly_0821_release~7613^2~3726^2~11
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=1c5f50ee347daea013671f718b70cd6bf497bef9;p=firefly-linux-kernel-4.4.55.git

x86, mm: fix uninitialized addr in kernel_physical_mapping_init()

This re-adds the lost chunk in commit 9b861528a80.

Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Wu Fengguang <fengguang.wu@intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Haicheng Li <haicheng.li@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
LKML-Reference: <20100903090407.GA19771@localhost>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---

diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c
index 64e7bc2ded93..74f0f358b07b 100644
--- a/arch/x86/mm/init_64.c
+++ b/arch/x86/mm/init_64.c
@@ -570,6 +570,7 @@ kernel_physical_mapping_init(unsigned long start,
 
 	start = (unsigned long)__va(start);
 	end = (unsigned long)__va(end);
+	addr = start;
 
 	for (; start < end; start = next) {
 		pgd_t *pgd = pgd_offset_k(start);