clk: sunxi: Use resource_size

Use the function resource_size instaed of explicit computation.

Problem found using Coccinelle.

Signed-off-by: Vaishali Thakkar <vaishali.thakkar@oracle.com>
Acked-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>

diff --git a/drivers/clk/sunxi/clk-sun9i-mmc.c b/drivers/clk/sunxi/clk-sun9i-mmc.c
index a9b176139aca8b159329e25ef76b805825423229..0c2dd02d8dec5cc94baed9e16dd446a35f5d8d85 100644 (file)
--- a/drivers/clk/sunxi/clk-sun9i-mmc.c
+++ b/drivers/clk/sunxi/clk-sun9i-mmc.c
@@ -106,7 +106,7 @@ static int sun9i_a80_mmc_config_clk_probe(struct platform_device *pdev)
 
        r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
        /* one clock/reset pair per word */
-       count = DIV_ROUND_UP((r->end - r->start + 1), SUN9I_MMC_WIDTH);
+       count = DIV_ROUND_UP((resource_size(r)), SUN9I_MMC_WIDTH);
        data->membase = devm_ioremap_resource(&pdev->dev, r);
        if (IS_ERR(data->membase))
                return PTR_ERR(data->membase);