diff options
| author | Johan Hovold <johan@kernel.org> | 2017-03-17 11:35:44 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-03-23 13:54:03 +0100 |
| commit | 9fdc1c6fdfa0bdf1854c3c06f002e6a76155fa2b (patch) | |
| tree | 4a1e315b60b3459eb62a5fd82b976e8f0ca793b2 /drivers/usb/misc/uss720.c | |
| parent | aac96ef9ed3aba10d97cbc5afaf79365701a2f14 (diff) | |
| download | linux-9fdc1c6fdfa0bdf1854c3c06f002e6a76155fa2b.tar.bz2 | |
USB: uss720: add debug endpoint-type check
Use the new endpoint helpers to lookup the interrupt-in endpoint,
and only print the corresponding debugging information in case it is
found.
Note that the descriptors are searched in reverse order to avoid any
regressions.
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/misc/uss720.c')
| -rw-r--r-- | drivers/usb/misc/uss720.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/drivers/usb/misc/uss720.c b/drivers/usb/misc/uss720.c index e45a3a680db8..00ce314d89e7 100644 --- a/drivers/usb/misc/uss720.c +++ b/drivers/usb/misc/uss720.c @@ -689,7 +689,7 @@ static int uss720_probe(struct usb_interface *intf, { struct usb_device *usbdev = usb_get_dev(interface_to_usbdev(intf)); struct usb_host_interface *interface; - struct usb_host_endpoint *endpoint; + struct usb_endpoint_descriptor *epd; struct parport_uss720_private *priv; struct parport *pp; unsigned char reg; @@ -740,9 +740,11 @@ static int uss720_probe(struct usb_interface *intf, get_1284_register(pp, 0, ®, GFP_KERNEL); dev_dbg(&intf->dev, "reg: %7ph\n", priv->reg); - endpoint = &interface->endpoint[2]; - dev_dbg(&intf->dev, "epaddr %d interval %d\n", - endpoint->desc.bEndpointAddress, endpoint->desc.bInterval); + i = usb_find_last_int_in_endpoint(interface, &epd); + if (!i) { + dev_dbg(&intf->dev, "epaddr %d interval %d\n", + epd->bEndpointAddress, epd->bInterval); + } parport_announce_port(pp); usb_set_intfdata(intf, pp); |