From 122d6a347329818419b032c5a1776e6b3866d9b9 Mon Sep 17 00:00:00 2001 From: Cameron Gutman Date: Tue, 12 Sep 2017 11:27:44 -0700 Subject: [PATCH] Input: xpad - validate USB endpoint type during probe We should only see devices with interrupt endpoints. Ignore any other endpoints that we find, so we don't send try to send them interrupt URBs and trigger a WARN down in the USB stack. Reported-by: Andrey Konovalov Tested-by: Andrey Konovalov Cc: # c01b5e7464f0 Input: xpad - don't depend on endpoint order Signed-off-by: Cameron Gutman Signed-off-by: Dmitry Torokhov --- drivers/input/joystick/xpad.c | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-) diff --git a/drivers/input/joystick/xpad.c b/drivers/input/joystick/xpad.c index 2578a76770404..f670dcb401c05 100644 --- a/drivers/input/joystick/xpad.c +++ b/drivers/input/joystick/xpad.c @@ -1750,10 +1750,12 @@ static int xpad_probe(struct usb_interface *intf, const struct usb_device_id *id struct usb_endpoint_descriptor *ep = &intf->cur_altsetting->endpoint[i].desc; - if (usb_endpoint_dir_in(ep)) - ep_irq_in = ep; - else - ep_irq_out = ep; + if (usb_endpoint_xfer_int(ep)) { + if (usb_endpoint_dir_in(ep)) + ep_irq_in = ep; + else + ep_irq_out = ep; + } } if (!ep_irq_in || !ep_irq_out) {