Staging: android: ram_console: Use resource_size function

The semantic patch that makes this change is available
in scripts/coccinelle/api/resource_size.cocci.

More information about semantic patching is available at
http://coccinelle.lip6.fr/Signed-off-by: Thomas Meyer <thomas@m3y3r.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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);