[PATCH 2/2] dvb_usb_v2 Allow d->props.bInterfaceNumber to set the correct interface.

[Malcolm Priestley <tvboxspy@gmail.com>]

Although the interface could be set in identify state, ideally it should be done in
the probe.

Allow d->props.bInterfaceNumber try to set the correct interface rather than return error.


Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
---
 drivers/media/dvb/dvb-usb/dvb_usb_init.c |   11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/drivers/media/dvb/dvb-usb/dvb_usb_init.c b/drivers/media/dvb/dvb-usb/dvb_usb_init.c
index c16a28a..b2eb8ac 100644
--- a/drivers/media/dvb/dvb-usb/dvb_usb_init.c
+++ b/drivers/media/dvb/dvb-usb/dvb_usb_init.c
@@ -391,8 +391,15 @@ int dvb_usbv2_probe(struct usb_interface *intf,
 
 	if (d->intf->cur_altsetting->desc.bInterfaceNumber !=
 			d->props.bInterfaceNumber) {
-		ret = -ENODEV;
-		goto err_kfree;
+		usb_reset_configuration(d->udev);
+
+		ret = usb_set_interface(d->udev,
+			d->intf->cur_altsetting->desc.bInterfaceNumber,
+				d->props.bInterfaceNumber);
+		if (ret < 0) {
+			ret = -ENODEV;
+			goto err_kfree;
+		}
 	}
 
 	mutex_init(&d->usb_mutex);
-- 
1.7.10