Commit b0096182 authored May 29, 2012 by Shuah Khan Committed by Linus Torvalds May 29, 2012

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 <shuahkhan@gmail.com>
Cc: Richard Purdie <rpurdie@rpsys.net>
Cc: Bryan Wu <bryan.wu@canonical.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

parent 1daef6d2

include/linux/leds.h

+2 −0

Original line number	Diff line number	Diff line
		@@ -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
		};

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