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led: triggers: fix crash on disabling "default-on" trigger 

Here is a sample crash log on Ritmix RZX-50:

    barebox:/ trigger
    0: panic
    1: heartbeat
    2: net rx
    3: net tx
    4: net
    5: default on (led 0)
    barebox:/ trigger -d 5
    ...
    Ooops, TLB miss on store!

Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This commit is contained in:
Antony Pavlov 2014-07-30 21:34:34 +04:00 committed by Sascha Hauer
parent 45efb46dbb
commit e66190f4f7
1 changed files with 1 additions and 1 deletions
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2
drivers/led/led-triggers.c
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@ -124,7 +124,7 @@ int led_set_trigger(enum led_trigger trigger, struct led *led)
triggers[trigger].led = led;
if (trigger == LED_TRIGGER_DEFAULT_ON)
if (led && trigger == LED_TRIGGER_DEFAULT_ON)
led_set(triggers[trigger].led, triggers[trigger].led->max_value);
return 0;