bcm2835_smi: fix dma transfers

PR raspberrypi#1629 removed a dereference in the original code leading to smi_bus_address being wrong

Author: Stary2001

drivers/misc/bcm2835_smi.c

@@ -858,7 +858,6 @@ static int bcm2835_smi_probe(struct platform_device *pdev)
 	struct device_node *node = dev->of_node;
 	struct resource *ioresource;
 	struct bcm2835_smi_instance *inst;
-	const __be32 *addr;
 
 	/* We require device tree support */
 	if (!node)
@@ -878,8 +877,7 @@ static int bcm2835_smi_probe(struct platform_device *pdev)
 		err = PTR_ERR(inst->smi_regs_ptr);
 		goto err;
 	}
-	addr = of_get_address(node, 0, NULL, NULL);
-	inst->smi_regs_busaddr = be32_to_cpu(addr);
+	inst->smi_regs_busaddr = be32_to_cpu(*of_get_address(node, 0, NULL, NULL));
 
 	err = bcm2835_smi_dma_setup(inst);
 	if (err)