Use resource_size rather than a verbose computation on the end and start fields. The semantic patch that makes this change is as follows: (http://coccinelle.lip6.fr/) <smpl> @@ struct resource ptr; @@ - (ptr.end - ptr.start + 1) + resource_size(&ptr) </smpl> Signed-off-by: Julia Lawall <Julia.Lawall@xxxxxxxx> --- sound/soc/sof/imx/imx8m.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff -u -p a/sound/soc/sof/imx/imx8m.c b/sound/soc/sof/imx/imx8m.c --- a/sound/soc/sof/imx/imx8m.c +++ b/sound/soc/sof/imx/imx8m.c @@ -188,8 +188,7 @@ static int imx8m_probe(struct snd_sof_de } sdev->bar[SOF_FW_BLK_TYPE_SRAM] = devm_ioremap_wc(sdev->dev, res.start, - res.end - res.start + - 1); + resource_size(&res)); if (!sdev->bar[SOF_FW_BLK_TYPE_SRAM]) { dev_err(sdev->dev, "failed to ioremap mem 0x%x size 0x%x\n", base, size);