4.4-stable review patch. If anyone has any objections, please let me know.
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[ Upstream commit 122d6a347329818419b032c5a1776e6b3866d9b9 ]
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 andreyknvl@google.com Tested-by: Andrey Konovalov andreyknvl@google.com Cc: stable@vger.kernel.org # c01b5e7464f0 Input: xpad - don't depend on endpoint order Signed-off-by: Cameron Gutman aicommander@gmail.com Signed-off-by: Dmitry Torokhov dmitry.torokhov@gmail.com Signed-off-by: Sasha Levin sashal@kernel.org --- 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 f8e34ef643c7..d86e59515b9c 100644 --- a/drivers/input/joystick/xpad.c +++ b/drivers/input/joystick/xpad.c @@ -1764,10 +1764,12 @@ 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) {