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Subject[PATCH 02/68] 0 -> NULL, for arch/arm
From

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@wanadoo.fr>
Cc: rmk@arm.linux.org.uk
Cc: akpm@linux-foundation.org
---

common/dmabounce.c | 2 +-
mach-omap1/clock.c | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm/common/dmabounce.c b/arch/arm/common/dmabounce.c
index b36b1e8..74ff750 100644
--- a/arch/arm/common/dmabounce.c
+++ b/arch/arm/common/dmabounce.c
@@ -238,7 +238,7 @@ map_single(struct device *dev, void *ptr
struct safe_buffer *buf;

buf = alloc_safe_buffer(device_info, ptr, size, dir);
- if (buf == 0) {
+ if (buf == NULL) {
dev_err(dev, "%s: unable to map unsafe buffer %p!\n",
__func__, ptr);
return 0;
diff --git a/arch/arm/mach-omap1/clock.c b/arch/arm/mach-omap1/clock.c
index f625f6d..b7e1b22 100644
--- a/arch/arm/mach-omap1/clock.c
+++ b/arch/arm/mach-omap1/clock.c
@@ -193,7 +193,7 @@ static int calc_dsor_exp(struct clk *clk
return -EINVAL;

parent = clk->parent;
- if (unlikely(parent == 0))
+ if (unlikely(parent == NULL))
return -EIO;

realrate = parent->rate;
-
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