[ARM] ARRAY_SIZE() cleanup

Signed-off-by: Alejandro Martinez Ruiz <alex@flawedcode.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
diff --git a/arch/arm/kernel/dma-isa.c b/arch/arm/kernel/dma-isa.c
index 0a3e9ad..2f080a3 100644
--- a/arch/arm/kernel/dma-isa.c
+++ b/arch/arm/kernel/dma-isa.c
@@ -216,7 +216,7 @@
 
 		request_dma(DMA_ISA_CASCADE, "cascade");
 
-		for (i = 0; i < sizeof(dma_resources) / sizeof(dma_resources[0]); i++)
+		for (i = 0; i < ARRAY_SIZE(dma_resources); i++)
 			request_resource(&ioport_resource, dma_resources + i);
 	}
 }