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19cc8b1819
_find_key_ceil() may return an error and that must be checked before passing the same to dev_pm_opp_put(). Fixes: 41907aa4ae37 ("OPP: Level zero is valid") Reported-by: Dan Carpenter <dan.carpenter@linaro.org> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>