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[media] rtl28xxu: do not return error for unimplemented fe callback

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Use of frontend callback is highly hardware design dependent
and whole callback could be optional in many cases. Returning
error by default when callback is not implemented is stupid.

Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Antti Palosaari 2012-09-17 15:49:54 -03:00 committed by Mauro Carvalho Chehab
parent 4005c1a9f6
commit 97efe7811b
1 changed files with 2 additions and 6 deletions
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8
drivers/media/usb/dvb-usb-v2/rtl28xxu.c
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@ -591,7 +591,6 @@ static int rtl2832u_fc0012_tuner_callback(struct dvb_usb_device *d,
goto err;
}
return 0;
err:
dev_dbg(&d->udev->dev, "%s: failed=%d\n", __func__, ret);
return ret;
@ -643,7 +642,6 @@ static int rtl2832u_tua9001_tuner_callback(struct dvb_usb_device *d,
}
return 0;
err:
dev_dbg(&d->udev->dev, "%s: failed=%d\n", __func__, ret);
return ret;
@ -656,17 +654,15 @@ static int rtl2832u_tuner_callback(struct dvb_usb_device *d, int cmd, int arg)
switch (priv->tuner) {
case TUNER_RTL2832_FC0012:
return rtl2832u_fc0012_tuner_callback(d, cmd, arg);
case TUNER_RTL2832_FC0013:
return rtl2832u_fc0013_tuner_callback(d, cmd, arg);
case TUNER_RTL2832_TUA9001:
return rtl2832u_tua9001_tuner_callback(d, cmd, arg);
default:
break;
}
return -ENODEV;
return 0;
}
static int rtl2832u_frontend_callback(void *adapter_priv, int component,
@ -682,7 +678,7 @@ static int rtl2832u_frontend_callback(void *adapter_priv, int component,
break;
}
return -EINVAL;
return 0;
}
static int rtl2832u_frontend_attach(struct dvb_usb_adapter *adap)