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authorJohan Hovold <johan@kernel.org>2017-03-28 10:33:15 +0200
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2017-03-29 11:53:15 +0200
commit175f88a374ca905293f67219a8201cd00a27f541 (patch)
treed09749b2029400603a77ea58e80150d0e85b2a96 /drivers/usb/misc
parente47ff590cc57a3468c1f77e5f2494bbaefdd4371 (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>
Diffstat (limited to 'drivers/usb/misc')
-rw-r--r--drivers/usb/misc/lvstest.c7
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) {