[tip:x86/mm] x86, mm: fix uninitialized addr in kernel_physical_mapping_init()

[tip-bot for Wu Fengguang]

Commit-ID:  1c5f50ee347daea013671f718b70cd6bf497bef9
Gitweb:     http://git.kernel.org/tip/1c5f50ee347daea013671f718b70cd6bf497bef9
Author:     Wu Fengguang <fengguang.wu@xxxxxxxxx>
AuthorDate: Fri, 3 Sep 2010 17:04:07 +0800
Committer:  Ingo Molnar <mingo@xxxxxxx>
CommitDate: Fri, 3 Sep 2010 11:40:11 +0200

x86, mm: fix uninitialized addr in kernel_physical_mapping_init()

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

Reported-by: Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx>
Signed-off-by: Wu Fengguang <fengguang.wu@xxxxxxxxx>
Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Cc: Haicheng Li <haicheng.li@xxxxxxxxxxxxxxx>
Cc: Andi Kleen <ak@xxxxxxxxxxxxxxx>
LKML-Reference: <20100903090407.GA19771@localhost>
Signed-off-by: Ingo Molnar <mingo@xxxxxxx>
---
 arch/x86/mm/init_64.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c
index 64e7bc2..74f0f35 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);
--
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