V4L/DVB (4028): Change dvb_frontend_ops to be a real field instead of a pointer field inside dvb_frontend

The dvb_frontend_ops is a pointer inside dvb_frontend. That's why every demod-driver
is having a field of dvb_frontend_ops in its private-state-struct and
using the reference for filling the pointer-field in dvb_frontend.
- It saves at least two lines of code per demod-driver,
- reduces object size (one less dereference per frontend_ops-access),
- be coherent with dvb_tuner_ops,
- makes it a little bit easier for newbies to understand how it works and
- avoids stupid mistakes because you would have to copy the dvb_frontend_ops
  always, before you could assign the static pointer directly, which was
  dangerous.

Signed-off-by: Patrick Boettcher <pb@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

1 files changed, 4 insertions, 3 deletions

diff --git a/drivers/media/dvb/dvb-usb/dibusb-mb.c b/drivers/media/dvb/dvb-usb/dibusb-mb.c
index def0c111ce0a..f4c45f386ebc 100644
--- a/drivers/media/dvb/dvb-usb/dibusb-mb.c
+++ b/drivers/media/dvb/dvb-usb/dibusb-mb.c
@@ -20,11 +20,12 @@ static int dibusb_dib3000mb_frontend_attach(struct dvb_usb_device *d)
 	struct dibusb_state *st = d->priv;
 
 	demod_cfg.demod_address = 0x8;
-	d->fe->ops->tuner_ops.init = dvb_usb_tuner_init_i2c;
-	d->fe->ops->tuner_ops.set_params = dvb_usb_tuner_set_params_i2c;
 
-	if ((d->fe = dib3000mb_attach(&demod_cfg,&d->i2c_adap,&st->ops)) == NULL)
+	if ((d->fe = dib3000mb_attach(&demod_cfg,&d->i2c_adap,&st->ops)) == NULL) {
+		d->fe->ops.tuner_ops.init = dvb_usb_tuner_init_i2c;
+		d->fe->ops.tuner_ops.set_params = dvb_usb_tuner_set_params_i2c;
 		return -ENODEV;
+	}
 
 	d->tuner_pass_ctrl = st->ops.tuner_pass_ctrl;