From: Zhang Yanfei <zhangyanfei@cn.fujitsu.com>
Date: Wed, 19 Jun 2013 00:06:56 +0000 (+1000)
Subject: mm-remove-duplicated-call-of-get_pfn_range_for_nid-v2
X-Git-Tag: next-20130619~2^2~354
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=a4548343d2e1b06a573bccecd3f6ae566882a2e5;p=karo-tx-linux.git

mm-remove-duplicated-call-of-get_pfn_range_for_nid-v2

It fixes the uninitialized warnings in Arches with no
CONFIG_HAVE_MEMBLOCK_NODE_MAP.

Signed-off-by: Zhang Yanfei <zhangyanfei@cn.fujitsu.com>
Cc: Michal Hocko <mhocko@suse.cz>
Cc: Wu Fengguang <fengguang.wu@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index feffe756a2e3..c7e2bea5e3de 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -4793,7 +4793,7 @@ void __paginginit free_area_init_node(int nid, unsigned long *zones_size,
 		unsigned long node_start_pfn, unsigned long *zholes_size)
 {
 	pg_data_t *pgdat = NODE_DATA(nid);
-	unsigned long start_pfn, end_pfn;
+	unsigned long start_pfn = 0, end_pfn = 0;
 
 	/* pg_data_t should be reset to zero when it's allocated */
 	WARN_ON(pgdat->nr_zones || pgdat->classzone_idx);