power: perform_hint_action: return an error code

So far the caller never knows if setting the hint actually worked.
This leads to a potential disconnect between the actual setting and the
UI because set_power_profile simply assumes perform_hint_action worked.

Return an error code or 0, so the callers can check for success.

Change-Id: I180a367e9d8581a63dfa703046b37bc5cae8c6cb
Signed-off-by: Corinna Vinschen <xda@vinschen.de>

1 files changed, 1 insertions, 1 deletions

diff --git a/utils.h b/utils.h
index e5748dc..b4aa2a5 100644
--- a/utils.h
+++ b/utils.h
@@ -36,7 +36,7 @@ int get_scaling_governor_check_cores(char governor[], int size, int core_num);
 int is_interactive_governor(char*);
 int is_schedutil_governor(char*);
 
-void perform_hint_action(int hint_id, int resource_values[], int num_resources);
+int perform_hint_action(int hint_id, int resource_values[], int num_resources);
 void undo_hint_action(int hint_id);
 void undo_initial_hint_action();
 void release_request(int lock_handle);