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 <[email protected]>
Cc: [email protected]
Cc: [email protected]
---
cchips/hd6446x/hd64461.c | 2 +-
cchips/hd6446x/hd64465/gpio.c | 4 ++--
cchips/hd6446x/hd64465/setup.c | 2 +-
cchips/voyagergx/irq.c | 2 +-
kernel/sh_bios.c | 2 +-
5 files changed, 6 insertions(+), 6 deletions(-)
diff --git a/arch/sh/cchips/hd6446x/hd64461.c b/arch/sh/cchips/hd6446x/hd64461.c
index 97f6512..6117fd7 100644
--- a/arch/sh/cchips/hd6446x/hd64461.c
+++ b/arch/sh/cchips/hd6446x/hd64461.c
@@ -116,7 +116,7 @@ int hd64461_irq_demux(int irq)
irq = CONFIG_HD64461_IRQ;
else {
irq = HD64461_IRQBASE + i;
- if (hd64461_demux[i].func != 0) {
+ if (hd64461_demux[i].func != NULL) {
irq = hd64461_demux[i].func(irq, hd64461_demux[i].dev);
}
}
diff --git a/arch/sh/cchips/hd6446x/hd64465/gpio.c b/arch/sh/cchips/hd6446x/hd64465/gpio.c
index 4343185..8ed39e2 100644
--- a/arch/sh/cchips/hd6446x/hd64465/gpio.c
+++ b/arch/sh/cchips/hd6446x/hd64465/gpio.c
@@ -96,7 +96,7 @@ static irqreturn_t hd64465_gpio_interrup
mask = 1<<pin;
if (isr & mask) {
portpin = (port<<3)|pin;
- if (handlers[portpin].func != 0)
+ if (handlers[portpin].func != NULL)
handlers[portpin].func(portpin, handlers[portpin].dev);
else
printk(KERN_NOTICE "unexpected GPIO interrupt, pin %c%d\n",
@@ -117,7 +117,7 @@ void hd64465_gpio_register_irq(int portp
unsigned long flags;
unsigned short icr, mask;
- if (handler == 0)
+ if (handler == NULL)
return;
local_irq_save(flags);
diff --git a/arch/sh/cchips/hd6446x/hd64465/setup.c b/arch/sh/cchips/hd6446x/hd64465/setup.c
index d126e1f..f6c4139 100644
--- a/arch/sh/cchips/hd6446x/hd64465/setup.c
+++ b/arch/sh/cchips/hd6446x/hd64465/setup.c
@@ -140,7 +140,7 @@ int hd64465_irq_demux(int irq)
if (i < HD64465_IRQ_NUM) {
irq = HD64465_IRQ_BASE + i;
- if (hd64465_demux[i].func != 0)
+ if (hd64465_demux[i].func != NULL)
irq = hd64465_demux[i].func(irq, hd64465_demux[i].dev);
}
}
diff --git a/arch/sh/cchips/voyagergx/irq.c b/arch/sh/cchips/voyagergx/irq.c
index d70e5c8..9631e9a 100644
--- a/arch/sh/cchips/voyagergx/irq.c
+++ b/arch/sh/cchips/voyagergx/irq.c
@@ -128,7 +128,7 @@ int voyagergx_irq_demux(int irq)
pr_debug("voyagergx_irq_demux %ld \n", i);
if (i < VOYAGER_IRQ_NUM) {
irq = VOYAGER_IRQ_BASE + i;
- if (voyagergx_demux[i].func != 0)
+ if (voyagergx_demux[i].func != NULL)
irq = voyagergx_demux[i].func(irq,
voyagergx_demux[i].dev);
}
diff --git a/arch/sh/kernel/sh_bios.c b/arch/sh/kernel/sh_bios.c
index d1bcac4..c91585c 100644
--- a/arch/sh/kernel/sh_bios.c
+++ b/arch/sh/kernel/sh_bios.c
@@ -56,7 +56,7 @@ int sh_bios_in_gdb_mode(void)
gdb_mode_p = (char *)r;
queried = 1;
}
- return (gdb_mode_p != 0 ? *gdb_mode_p : 0);
+ return (gdb_mode_p != NULL ? *gdb_mode_p : 0);
}
void sh_bios_gdb_detach(void)
-
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