diff options
| author | Cameron Gutman <aicommander@gmail.com> | 2017-09-12 11:27:44 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-12-01 09:46:39 +0100 |
| commit | a9fd0ecce400a7d8fe9e8dd4089a394f8b580df6 (patch) | |
| tree | d9804328a60e48659687774de2406cb460e79ce1 /drivers/input/joystick/xpad.c | |
| parent | 0021e15690c466540a334da7db074f55b138c1fc (diff) | |
Input: xpad - validate USB endpoint type during probe
[ 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>
Diffstat (limited to 'drivers/input/joystick/xpad.c')
| -rw-r--r-- | drivers/input/joystick/xpad.c | 10 |
1 files 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) { |