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>

1 files changed, 1 insertions, 1 deletions

diff --git a/arch/arm/mach-omap2/irq.c b/arch/arm/mach-omap2/irq.c
index 14fbc781338f..80f3ced0bd1a 100644
--- a/arch/arm/mach-omap2/irq.c
+++ b/arch/arm/mach-omap2/irq.c
@@ -335,7 +335,7 @@ void omap_intc_restore_context(void)
 void omap3_intc_suspend(void)
 {
         /* A pending interrupt would prevent OMAP from entering suspend */
-        omap_ack_irq(0);
+        omap_ack_irq(NULL);
 }
 
 void omap3_intc_prepare_idle(void)