evie/android_kernel_oneplus_msm8998
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

Merge "usb: gadget: composite: Add spinlock protection for usb config descriptor"

Browse source
This commit is contained in:
Linux Build Service Account 2016-12-20 14:04:21 -08:00 • committed by Gerrit - the friendly Code Review server
commit 12fdb0f751
1 changed files with 4 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

4
drivers/usb/gadget/composite.c
View file

@ -1655,7 +1655,9 @@ composite_setup(struct usb_gadget *gadget, const struct usb_ctrlrequest *ctrl)
if (!gadget_is_dualspeed(gadget) ||
gadget->speed >= USB_SPEED_SUPER)
break;
spin_lock(&cdev->lock);
device_qual(cdev);
spin_unlock(&cdev->lock);
value = min_t(int, w_length,
sizeof(struct usb_qualifier_descriptor));
break;
@ -1665,7 +1667,9 @@ composite_setup(struct usb_gadget *gadget, const struct usb_ctrlrequest *ctrl)
break;
/* FALLTHROUGH */
case USB_DT_CONFIG:
spin_lock(&cdev->lock);
value = config_desc(cdev, w_value);
spin_unlock(&cdev->lock);
if (value >= 0)
value = min(w_length, (u16) value);
break;