linux-kernel - [PATCH 11/68] 0 -> NULL, for arch/parisc

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Date:	Fri, 27 Jul 2007 11:45:05 +0200 (MEST)
From:	Yoann Padioleau <padator@...adoo.fr>
To:	kernel-janitors@...r.kernel.org
Cc:	matthew@....cx, grundler@...isc-linux.org, kyle@...isc-linux.org,
	parisc-linux@...isc-linux.org, akpm@...ux-foundation.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH 11/68] 0 -> NULL, for arch/parisc


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: matthew@....cx
Cc: grundler@...isc-linux.org
Cc: kyle@...isc-linux.org
Cc: parisc-linux@...isc-linux.org
Cc: akpm@...ux-foundation.org
---

 smp.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/parisc/kernel/smp.c b/arch/parisc/kernel/smp.c
index 04c7e1d..16fccbe 100644
--- a/arch/parisc/kernel/smp.c
+++ b/arch/parisc/kernel/smp.c
@@ -333,7 +333,7 @@ smp_call_function (void (*func) (void *i
 
 	if (retry) {
 		spin_lock (&lock);
-		while (smp_call_function_data != 0)
+		while (smp_call_function_data != NULL)
 			barrier();
 	}
 	else {

-
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