LEDs are registered using devm_led_classdev_register() and automatically unregistered after module's remove(). led_classdev_unregister() calls led_set_brightness() to turn off the LEDs and module's appropriate callback uses resources those were destroyed already in module's remove(). So explicitly unregister LEDs at module shutdown.
Signed-off-by: George Stark <gnst...@salutedevices.com> --- drivers/leds/leds-nic78bx.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/leds/leds-nic78bx.c b/drivers/leds/leds-nic78bx.c index f196f52eec1e..12b70fcad37f 100644 --- a/drivers/leds/leds-nic78bx.c +++ b/drivers/leds/leds-nic78bx.c @@ -170,6 +170,10 @@ static int nic78bx_probe(struct platform_device *pdev) static int nic78bx_remove(struct platform_device *pdev) { struct nic78bx_led_data *led_data = platform_get_drvdata(pdev); + int i; + + for (i = 0; i < ARRAY_SIZE(nic78bx_leds); i++) + devm_led_classdev_unregister(&pdev->dev, &nic78bx_leds[i].cdev); /* Lock LED register */ outb(NIC78BX_LOCK_VALUE, -- 2.38.4