leds: add new field to led_classdev struct to save activation state
authorShuah Khan <shuahkhan@gmail.com>
Tue, 29 May 2012 22:07:27 +0000 (15:07 -0700)
committerLinus Torvalds <torvalds@linux-foundation.org>
Tue, 29 May 2012 23:22:31 +0000 (16:22 -0700)
commitb00961824a33aadec4a825eaeccfbe3db8ec7032
treef3af8c9307bdf3b06b9fc21df9aea0356b89e2b5
parent1daef6d27b558d0bde72302ba7062b746887a643
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>
include/linux/leds.h