mm/memblock: Use NULL instead of 0 for pointers

This type cleanup also fixes the following sparse warning:

  mm/memblock.c:249:49: warning: Using plain integer as NULL pointer

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Acked-by: Tejun Heo <tj@kernel.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: patches@linaro.org
Cc: linux-mm@kvack.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>

diff --git a/mm/memblock.c b/mm/memblock.c
index 4d9393c..82aa349 100644 (file)
--- a/mm/memblock.c
+++ b/mm/memblock.c
@@ -246,7 +246,7 @@ static int __init_memblock memblock_double_array(struct memblock_type *type,
                                min(new_area_start, memblock.current_limit),
                                new_alloc_size, PAGE_SIZE);
 
-               new_array = addr ? __va(addr) : 0;
+               new_array = addr ? __va(addr) : NULL;
        }
        if (!addr) {
                pr_err("memblock: Failed to double %s array from %ld to %ld entries !\n",