When any of CONFIG_PM_OPP or CONFIG_OF isn't enabled we have a dummy
implementation of of_init_opp_table() routine, it returns -EINVAL currently.
-EINVAL can be returned from other places within the real implementations of
of_init_opp_table() and so caller wouldn't be able to differentiate between
those two cases.

Make it return -ENOSYS instead for better handling.

Suggested-by: Sudeep Holla <sudeep.ho...@arm.com>
Signed-off-by: Viresh Kumar <viresh.ku...@linaro.org>
---
 include/linux/pm_opp.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/linux/pm_opp.h b/include/linux/pm_opp.h
index 0330217..6668150 100644
--- a/include/linux/pm_opp.h
+++ b/include/linux/pm_opp.h
@@ -112,7 +112,7 @@ int of_init_opp_table(struct device *dev);
 #else
 static inline int of_init_opp_table(struct device *dev)
 {
-       return -EINVAL;
+       return -ENOSYS;
 }
 #endif
 
-- 
2.0.0.rc2

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