Hugh, Here's a patch which must fix your problem. It allows to call led_blink_set() from on IRQ handler by adding a work to take care of the scheduling function cancel_delayed_work_sync(). Regards, Vincent. Vincent Donnefort (1): leds: make led_blink_set IRQ safe drivers/leds/led-class.c | 19 +++++++++++++++++++ drivers/leds/led-core.c | 16 +--------------- include/linux/leds.h | 1 + 3 files changed, 21 insertions(+), 15 deletions(-) -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html