devm_iio_channel_free_all 500 drivers/iio/inkern.c ptr = devres_alloc(devm_iio_channel_free_all, sizeof(*ptr), GFP_KERNEL); devm_iio_channel_free_all 520 drivers/iio/inkern.c WARN_ON(devres_release(dev, devm_iio_channel_free_all,