From e69861ad1643b0afa3e8f277257f306385de7ebf Mon Sep 17 00:00:00 2001 From: Shuah Khan Date: Wed, 25 Apr 2012 11:04:31 +1000 Subject: [PATCH] leds: add new field to led_classdev struct to save activation state Add a new field to led_classdev to save activattion state after activate routine is successful. This saved state is used in deactivate routine to do cleanup such as removing device files, and free memory allocated during activation. Currently trigger_data not being null is used for this purpose. Existing triggers will need changes to use this new field. Signed-off-by: Shuah Khan Cc: Richard Purdie Signed-off-by: Andrew Morton --- include/linux/leds.h | 2 ++ 1 file changed, 2 insertions(+) diff --git a/include/linux/leds.h b/include/linux/leds.h index 5884def15a24..39eee41d8c6f 100644 --- a/include/linux/leds.h +++ b/include/linux/leds.h @@ -73,6 +73,8 @@ struct led_classdev { struct led_trigger *trigger; struct list_head trig_list; void *trigger_data; + /* true if activated - deactivate routine uses it to do cleanup */ + bool activated; #endif }; -- 2.39.5