From: kernel test robot <lkp(a)intel.com&gt; drivers/iio/industrialio-sw-trigger.c:169:1-3: WARNING: PTR_ERR_OR_ZERO can be used Use PTR_ERR_OR_ZERO rather than if(IS_ERR(...)) + PTR_ERR Generated by: scripts/coccinelle/api/ptr_ret.cocci Fixes: 970438474716 ("UPSTREAM: iio: core: Introduce IIO software triggers") CC: Daniel Baluta <daniel.baluta(a)intel.com&gt; Signed-off-by: kernel test robot <lkp(a)intel.com&gt; --- tree: https://chromium.googlesource.com/chromiumos/third_party/kernel chromeos-4.4 head: aac4814b1098ee558c879fb53cbbaa5596d2aec7 commit: 9704384747162dd0ecd4b4859cd2a5861065fc82 [6/9] UPSTREAM: iio: core: Introduce IIO software triggers industrialio-sw-trigger.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) --- a/drivers/iio/industrialio-sw-trigger.c +++ b/drivers/iio/industrialio-sw-trigger.c @@ -166,9 +166,7 @@ static int __init iio_sw_trigger_init(vo configfs_register_default_group(&iio_configfs_subsys.su_group, "triggers", &iio_triggers_group_type); - if (IS_ERR(iio_triggers_group)) - return PTR_ERR(iio_triggers_group); - return 0; + return PTR_ERR_OR_ZERO(iio_triggers_group); } module_init(iio_sw_trigger_init);