ARM: OMAP: fix 'using plain integer as NULL pointer' sparse warnings

sparse warns when 0 is passed to a function expecting a pointer argument.
Resolve these warnings by replacing the 0 with NULL.

arch/arm/plat-omap/include/plat/dmtimer.h:319:34: warning: Using plain integer as NULL pointer
arch/arm/plat-omap/include/plat/dmtimer.h:324:35: warning: Using plain integer as NULL pointer
arch/arm/mach-omap2/irq.c:294:22: warning: Using plain integer as NULL pointer
arch/arm/mach-omap1/board-palmz71.c:292:50: warning: Using plain integer as NULL pointer
arch/arm/mach-omap1/board-palmz71.c:295:73: warning: Using plain integer as NULL pointer
arch/arm/mach-omap1/ams-delta-fiq.c:105:63: warning: Using plain integer as NULL pointer

Signed-off-by: Paul Walmsley <paul@pwsan.com>

2 files changed, 3 insertions, 3 deletions

diff --git a/arch/arm/mach-omap1/ams-delta-fiq.c b/arch/arm/mach-omap1/ams-delta-fiq.c
index fcce7ff37630..31197bd2dedc 100644
--- a/arch/arm/mach-omap1/ams-delta-fiq.c
+++ b/arch/arm/mach-omap1/ams-delta-fiq.c
@@ -102,7 +102,7 @@ void __init ams_delta_init_fiq(void)
         }
 
         retval = request_irq(INT_DEFERRED_FIQ, deferred_fiq,
-                        IRQ_TYPE_EDGE_RISING, "deferred_fiq", 0);
+                        IRQ_TYPE_EDGE_RISING, "deferred_fiq", NULL);
         if (retval < 0) {
                 pr_err("Failed to get deferred_fiq IRQ, ret=%d\n", retval);
                 release_fiq(&fh);
diff --git a/arch/arm/mach-omap1/board-palmz71.c b/arch/arm/mach-omap1/board-palmz71.c
index a2c5abcd7c84..61ed4f0247ce 100644
--- a/arch/arm/mach-omap1/board-palmz71.c
+++ b/arch/arm/mach-omap1/board-palmz71.c
@@ -289,10 +289,10 @@ palmz71_gpio_setup(int early)
                 gpio_direction_input(PALMZ71_USBDETECT_GPIO);
                 if (request_irq(gpio_to_irq(PALMZ71_USBDETECT_GPIO),
                                 palmz71_powercable, IRQF_SAMPLE_RANDOM,
-                                "palmz71-cable", 0))
+                                "palmz71-cable", NULL))
                         printk(KERN_ERR
                                         "IRQ request for power cable failed!\n");
-                palmz71_powercable(gpio_to_irq(PALMZ71_USBDETECT_GPIO), 0);
+                palmz71_powercable(gpio_to_irq(PALMZ71_USBDETECT_GPIO), NULL);
         }
 }