diff options
| author | Johan Hovold <johan@kernel.org> | 2017-03-28 10:33:15 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-03-29 11:53:15 +0200 |
| commit | 175f88a374ca905293f67219a8201cd00a27f541 (patch) | |
| tree | d09749b2029400603a77ea58e80150d0e85b2a96 | |
| parent | e47ff590cc57a3468c1f77e5f2494bbaefdd4371 (diff) | |
USB: lvstest: tighten endpoint sanity check
Use the new endpoint helpers to lookup the required interrupt-in
endpoint.
Note that this in fact both loosens and tightens the endpoint sanity
check by accepting any interface with an interrupt-in endpoint rather
than always using the first endpoint without verifying its type.
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/usb/misc/lvstest.c | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/drivers/usb/misc/lvstest.c b/drivers/usb/misc/lvstest.c index 6d075cdb6ed1..2142132a1f82 100644 --- a/drivers/usb/misc/lvstest.c +++ b/drivers/usb/misc/lvstest.c @@ -367,10 +367,9 @@ static int lvs_rh_probe(struct usb_interface *intf, hdev = interface_to_usbdev(intf); desc = intf->cur_altsetting; - if (desc->desc.bNumEndpoints < 1) - return -ENODEV; - - endpoint = &desc->endpoint[0].desc; + ret = usb_find_int_in_endpoint(desc, &endpoint); + if (ret) + return ret; /* valid only for SS root hub */ if (hdev->descriptor.bDeviceProtocol != USB_HUB_PR_SS || hdev->parent) { |