resource: Fix broken indentation

Fix broken indentation in patch
37b99dd5372cff42f83210c280f314f10f99138e.

Reported-by: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Wu Fengguang <fengguang.wu@intel.com>
LKML-Reference: <20100301135551.GA9998@localhost>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>

kernel/resource.c

@@ -287,7 +287,7 @@ int walk_system_ram_range(unsigned long start_pfn, unsigned long nr_pages,
 		pfn = (res.start + PAGE_SIZE - 1) >> PAGE_SHIFT;
 		end_pfn = (res.end + 1) >> PAGE_SHIFT;
 		if (end_pfn > pfn)
-		    ret = (*func)(pfn, end_pfn - pfn, arg);
+			ret = (*func)(pfn, end_pfn - pfn, arg);
 		if (ret)
 			break;
 		res.start = res.end + 1;