If a sub device doesn't immediately bind after it was added, emit an error indication to the kernel log to help debugging. This happens for example if the needed driver isn't available at all. Signed-off-by: Uwe Kleine-König <uwe@xxxxxxxxxxxxxxxxx> --- drivers/media/usb/dvb-usb-v2/af9035.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/media/usb/dvb-usb-v2/af9035.c b/drivers/media/usb/dvb-usb-v2/af9035.c index 22fda53e219a..6b7db903a365 100644 --- a/drivers/media/usb/dvb-usb-v2/af9035.c +++ b/drivers/media/usb/dvb-usb-v2/af9035.c @@ -210,6 +210,7 @@ static int af9035_add_i2c_dev(struct dvb_usb_device *d, const char *type, /* register I2C device */ client = i2c_new_client_device(adapter, &board_info); if (!i2c_client_has_driver(client)) { + dev_err(&intf->dev, "failed to bind i2c device to %s driver\n", type); ret = -ENODEV; goto err; } -- 2.30.2