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Message-Id: <200707270947.LAA17582@ifs.emn.fr>
Date: Fri, 27 Jul 2007 11:47:41 +0200 (MEST)
From: Yoann Padioleau <padator@...adoo.fr>
To: kernel-janitors@...r.kernel.org
Cc: ak@...e.de, discuss@...-64.org, akpm@...ux-foundation.org,
linux-kernel@...r.kernel.org
Subject: [PATCH 19/68] 0 -> NULL, for arch/x86_64
When comparing a pointer, it's clearer to compare it to NULL than to 0.
Here is an excerpt of the semantic patch:
@@
expression *E;
@@
E ==
- 0
+ NULL
@@
expression *E;
@@
E !=
- 0
+ NULL
Signed-off-by: Yoann Padioleau <padator@...adoo.fr>
Cc: ak@...e.de
Cc: discuss@...-64.org
Cc: akpm@...ux-foundation.org
---
numa.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/x86_64/mm/numa.c b/arch/x86_64/mm/numa.c
index 6da2355..97e8ac7 100644
--- a/arch/x86_64/mm/numa.c
+++ b/arch/x86_64/mm/numa.c
@@ -166,7 +166,7 @@ early_node_mem(int nodeid, unsigned long
return __va(mem);
ptr = __alloc_bootmem_nopanic(size,
SMP_CACHE_BYTES, __pa(MAX_DMA_ADDRESS));
- if (ptr == 0) {
+ if (ptr == NULL) {
printk(KERN_ERR "Cannot find %lu bytes in node %d\n",
size, nodeid);
return NULL;
-
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