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> --- drivers/video/fbdev/cg14.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/video/fbdev/cg14.c b/drivers/video/fbdev/cg14.c index a620b51cf7d0..6a745eb46ca1 100644 --- a/drivers/video/fbdev/cg14.c +++ b/drivers/video/fbdev/cg14.c @@ -509,8 +509,7 @@ static int cg14_probe(struct platform_device *op) if (!par->regs || !par->clut || !par->cursor || !info->screen_base) goto out_unmap_regs; - is_8mb = (((op->resource[1].end - op->resource[1].start) + 1) == - (8 * 1024 * 1024)); + is_8mb = (resource_size(&op->resource[1]) == (8 * 1024 * 1024)); BUILD_BUG_ON(sizeof(par->mmap_map) != sizeof(__cg14_mmap_map));
