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authorShuah Khan <shuahkhan@gmail.com>2012-05-29 15:07:27 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2012-05-29 16:22:31 -0700
commitb00961824a33aadec4a825eaeccfbe3db8ec7032 (patch)
treef3af8c9307bdf3b06b9fc21df9aea0356b89e2b5
parent1daef6d27b558d0bde72302ba7062b746887a643 (diff)
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>
-rw-r--r--include/linux/leds.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/leds.h b/include/linux/leds.h
index 5884def15a2..39eee41d8c6 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
};