[ Upstream commit4ea9496cbc
] dev_pm_domain_attach_by_name() may return NULL in some cases, so IS_ERR() doesn't meet the requirements. Thus fix it. Fixes:6319aee10e
("opp: Attach genpds to devices from within OPP core") Signed-off-by: Tang Bin <tangbin@cmss.chinamobile.com> [ Viresh: Replace ENODATA with ENODEV ] Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Sasha Levin <sashal@kernel.org>