diff --git a/drivers/staging/android/ram_console.c b/drivers/staging/android/ram_console.c
index 0cb3f3c227fc..fabd398ec1bc 100644
--- a/drivers/staging/android/ram_console.c
+++ b/drivers/staging/android/ram_console.c
@@ -351,7 +351,7 @@ static int ram_console_driver_probe(struct platform_device *pdev)
 		       "%lx\n", res, pdev->num_resources, res ? res->flags : 0);
 		return -ENXIO;
 	}
-	buffer_size = res->end - res->start + 1;
+	buffer_size = resource_size(res);
 	start = res->start;
 	printk(KERN_INFO "ram_console: got buffer at %zx, size %zx\n",
 	       start, buffer_size);