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Commit b0096182 authored by Shuah Khan's avatar Shuah Khan Committed by Linus Torvalds
Browse files

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: default avatarShuah Khan <shuahkhan@gmail.com>
Cc: Richard Purdie <rpurdie@rpsys.net>
Cc: Bryan Wu <bryan.wu@canonical.com>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus 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

};