ARM: pxa: encode IRQ number into .nr_irqs

Signed-off-by: Haojian Zhuang <haojian.zhuang@marvell.com>
Acked-by: Antonio Ospite <ospite@studenti.unina.it>
Signed-off-by: Eric Miao <eric.y.miao@gmail.com>
diff --git a/arch/arm/mach-pxa/balloon3.c b/arch/arm/mach-pxa/balloon3.c
index 9041340..2b81e64 100644
--- a/arch/arm/mach-pxa/balloon3.c
+++ b/arch/arm/mach-pxa/balloon3.c
@@ -779,6 +779,7 @@
 	.phys_io	= 0x40000000,
 	.io_pg_offst	= (io_p2v(0x40000000) >> 18) & 0xfffc,
 	.map_io		= balloon3_map_io,
+	.nr_irqs	= BALLOON3_NR_IRQS,
 	.init_irq	= balloon3_init_irq,
 	.timer		= &pxa_timer,
 	.init_machine	= balloon3_init,