redonkable/alistair23-linux
redonkable/alistair23-linux
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[media] dvb_usb_v2: add .bInterfaceNumber match

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There is no USB match flag for used USB interface. It is rather
common there is multiple interfaces offering different services.
For example one for television and one for remote controller.

Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Antti Palosaari 2012-06-07 17:34:41 -03:00 committed by Mauro Carvalho Chehab
parent 6b8c8c4089
commit 3676403764
2 changed files with 11 additions and 1 deletions
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1
drivers/media/dvb/dvb-usb/dvb_usb.h
View file

@ -172,6 +172,7 @@ struct dvb_usb_device_properties {
const char *driver_name;
struct module *owner;
short *adapter_nr;
u8 bInterfaceNumber;
int size_of_priv;

11
drivers/media/dvb/dvb-usb/dvb_usb_init.c
View file

@ -350,7 +350,8 @@ int dvb_usbv2_probe(struct usb_interface *intf,
struct dvb_usb_driver_info *driver_info =
(struct dvb_usb_driver_info *) id->driver_info;
pr_debug("%s:\n", __func__);
pr_debug("%s: bInterfaceNumber=%d\n", __func__,
intf->cur_altsetting->desc.bInterfaceNumber);
if (!id->driver_info) {
pr_err("%s: driver_info failed\n", KBUILD_MODNAME);
@ -371,6 +372,13 @@ int dvb_usbv2_probe(struct usb_interface *intf,
d->intf = intf;
memcpy(&d->props, driver_info->props,
sizeof(struct dvb_usb_device_properties));
if (d->intf->cur_altsetting->desc.bInterfaceNumber !=
d->props.bInterfaceNumber) {
ret = 0;
goto exit_kfree;
}
mutex_init(&d->usb_mutex);
mutex_init(&d->i2c_mutex);
INIT_WORK(&d->probe_work, dvb_usbv2_init_work);
@ -384,6 +392,7 @@ int dvb_usbv2_probe(struct usb_interface *intf,
return 0;
err_kfree:
usb_set_intfdata(intf, NULL);
exit_kfree:
kfree(d);
err:
pr_debug("%s: failed=%d\n", __func__, ret);