cpufreq: Use WARN_ON_ONCE() for invalid relation

The relation can't be invalid here, so if it turns out to be invalid,
just WARN_ON_ONCE() and return 0.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
[ rjw: Subject and changelog edits ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

diff --git a/include/linux/cpufreq.h b/include/linux/cpufreq.h
index 8f141d4..a911e5d 100644 (file)
--- a/include/linux/cpufreq.h
+++ b/include/linux/cpufreq.h
@@ -956,8 +956,8 @@ static inline int cpufreq_frequency_table_target(struct cpufreq_policy *policy,
        case CPUFREQ_RELATION_C:
                return cpufreq_table_find_index_c(policy, target_freq);
        default:
-               pr_err("%s: Invalid relation: %d\n", __func__, relation);
-               return -EINVAL;
+               WARN_ON_ONCE(1);
+               return 0;
        }
 }