From: kbuild test robot <lkp@xxxxxxxxx> drivers/pci/controller/pcie-rockchip-host.c:628:1-3: 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: 069ade5dfec9 ("Merge branch 'remotes/lorenzo/pci/rockchip'") Signed-off-by: kbuild test robot <lkp@xxxxxxxxx> --- tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: b371ddb94fae82b6565020639b7db31934043c65 commit: 069ade5dfec93dd2916a85df8b1bab2d578857bd Merge branch 'remotes/lorenzo/pci/rockchip' pcie-rockchip-host.c | 5 +---- 1 file changed, 1 insertion(+), 4 deletions(-) --- a/drivers/pci/controller/pcie-rockchip-host.c +++ b/drivers/pci/controller/pcie-rockchip-host.c @@ -625,10 +625,7 @@ static int rockchip_pcie_parse_host_dt(s return PTR_ERR(rockchip->vpcie1v8); rockchip->vpcie0v9 = devm_regulator_get(dev, "vpcie0v9"); - if (IS_ERR(rockchip->vpcie0v9)) - return PTR_ERR(rockchip->vpcie0v9); - - return 0; + return PTR_ERR_OR_ZERO(rockchip->vpcie0v9); } static int rockchip_pcie_set_vpcie(struct rockchip_pcie *rockchip)