summaryrefslogtreecommitdiff
path: root/drivers/input/misc/ims-pcu.c
diff options
context:
space:
mode:
authorDave Airlie <airlied@redhat.com>2017-03-28 10:34:19 +0300
committerDave Airlie <airlied@redhat.com>2017-03-28 10:34:19 +0300
commite5c1ff14757afe21733ddee9cc4bbaeaeadbf803 (patch)
tree0da1c9aaf772fac30fe68590a4ca1c3dd439cebd /drivers/input/misc/ims-pcu.c
parent65d1086c44791112188f6aebbdc3a27cab3736d3 (diff)
parentc02ed2e75ef4c74e41e421acb4ef1494671585e8 (diff)
downloadlinux-e5c1ff14757afe21733ddee9cc4bbaeaeadbf803.tar.xz
Backmerge tag 'v4.11-rc4' into drm-next
Linux 4.11-rc4 The i915 GVT team need the rc4 code to base some more code on.
Diffstat (limited to 'drivers/input/misc/ims-pcu.c')
-rw-r--r--drivers/input/misc/ims-pcu.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/input/misc/ims-pcu.c b/drivers/input/misc/ims-pcu.c
index 9c0ea36913b4..f4e8fbec6a94 100644
--- a/drivers/input/misc/ims-pcu.c
+++ b/drivers/input/misc/ims-pcu.c
@@ -1667,6 +1667,10 @@ static int ims_pcu_parse_cdc_data(struct usb_interface *intf, struct ims_pcu *pc
return -EINVAL;
alt = pcu->ctrl_intf->cur_altsetting;
+
+ if (alt->desc.bNumEndpoints < 1)
+ return -ENODEV;
+
pcu->ep_ctrl = &alt->endpoint[0].desc;
pcu->max_ctrl_size = usb_endpoint_maxp(pcu->ep_ctrl);