linux-kernel - [PATCH 15/68] 0 -> NULL, for arch/sh64

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Message-Id: <200707270945.LAA17342@ifs.emn.fr>
Date:	Fri, 27 Jul 2007 11:45:38 +0200 (MEST)
From:	Yoann Padioleau <padator@...adoo.fr>
To:	kernel-janitors@...r.kernel.org
Cc:	lethal@...ux-sh.org, linuxsh-shmedia-dev@...ts.sourceforge.net,
	akpm@...ux-foundation.org, linux-kernel@...r.kernel.org
Subject: [PATCH 15/68] 0 -> NULL, for arch/sh64


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: lethal@...ux-sh.org
Cc: linuxsh-shmedia-dev@...ts.sourceforge.net
Cc: akpm@...ux-foundation.org
---

 ioremap.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/sh64/mm/ioremap.c b/arch/sh64/mm/ioremap.c
index 9908577..b335849 100644
--- a/arch/sh64/mm/ioremap.c
+++ b/arch/sh64/mm/ioremap.c
@@ -167,7 +167,7 @@ static unsigned long shmedia_alloc_io(un
 
         if (name == NULL) name = "???";
 
-        if ((xres = xres_alloc()) != 0) {
+        if ((xres = xres_alloc()) != NULL) {
                 tack = xres->xname;
                 res = &xres->xres;
         } else {
@@ -364,7 +364,7 @@ ioremap_proc_info(char *buf, char **star
 	for (r = ((struct resource *)data)->child; r != NULL; r = r->sibling) {
 		if (p + 32 >= e)        /* Better than nothing */
 			break;
-		if ((nm = r->name) == 0) nm = "???";
+		if ((nm = r->name) == NULL) nm = "???";
 		p += sprintf(p, "%08lx-%08lx: %s\n",
 			     (unsigned long)r->start,
 			     (unsigned long)r->end, nm);

-
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