> commit 0c979a12309af49894bb1dc60e747c3cd53fa888
> Author: Mauro Carvalho Chehab <mchehab@xxxxxxxxxxxxxxxx>
> Date: Wed Nov 9 15:33:17 2016 -0200
>
> [media] gp8psk: Fix DVB frontend attach
>
> it should be calling module_get() at attach, as otherwise
> module_put() will crash.
>
> Signed-off-by: Mauro Carvalho Chehab <mchehab@xxxxxxxxxxxxxxxx>
>
> diff --git a/drivers/media/usb/dvb-usb/gp8psk.c b/drivers/media/usb/dvb-usb/gp8psk.c
> index cede0d8b0f8a..24eb6c6c8e24 100644
> --- a/drivers/media/usb/dvb-usb/gp8psk.c
> +++ b/drivers/media/usb/dvb-usb/gp8psk.c
> @@ -250,7 +250,7 @@ static int gp8psk_streaming_ctrl(struct dvb_usb_adapter *adap, int onoff)
>
> static int gp8psk_frontend_attach(struct dvb_usb_adapter *adap)
> {
> - adap->fe_adap[0].fe = gp8psk_fe_attach(adap->dev);
> + adap->fe_adap[0].fe = dvb_attach(gp8psk_fe_attach, adap->dev);
> return 0;
> }
This gives:
[119150.498863] DVB: Unable to find symbol gp8psk_fe_attach()
[119150.498928] dvb-usb: no frontend was attached by 'Genpix
SkyWalker-2 DVB-S receiver'
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