[PATCH] staging: fsl-mc: fix resource_size.cocci warnings

[Julia Lawall]

 Use resource_size function on resource object
 instead of explicit computation.

Generated by: scripts/coccinelle/api/resource_size.cocci

Fixes: a037b7ec2eb7 ("staging: fsl-mc: allow the driver compile multi-arch")
CC: Laurentiu Tudor <laurentiu.tu...@nxp.com>
Signed-off-by: Julia Lawall <julia.law...@lip6.fr>
Signed-off-by: Fengguang Wu <fengguang...@intel.com>
---

url:
https://github.com/0day-ci/linux/commits/laurentiu-tudor-nxp-com/staging-fsl-mc-make-the-driver-compile-on-other-architectures/20170718-021715
:::::: branch date: 2 days ago
:::::: commit date: 2 days ago


 mc-io.c |    3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

--- a/drivers/staging/fsl-mc/bus/mc-io.c
+++ b/drivers/staging/fsl-mc/bus/mc-io.c
@@ -242,8 +242,7 @@ int __must_check fsl_mc_portal_allocate(
                goto error_cleanup_resource;

        mc_portal_phys_addr = dpmcp_dev->regions[0].start;
-       mc_portal_size = dpmcp_dev->regions[0].end -
-                        dpmcp_dev->regions[0].start + 1;
+       mc_portal_size = resource_size(dpmcp_dev->regions);

        if (WARN_ON(mc_portal_size != mc_bus_dev->mc_io->portal_size))
                goto error_cleanup_resource;