Author: hselasky
Date: Mon Jun 8 09:25:40 2020
New Revision: 361909
URL: https://svnweb.freebsd.org/changeset/base/361909
Log:
MFC r361577:
Don't allow USB device drivers to parent own interface.
It will prevent proper USB device detach.
Sponsored by: Mellanox Technologies
Modified:
stable/9/sys/dev/usb/usb_device.c
Directory Properties:
stable/9/sys/ (props changed)
Modified: stable/9/sys/dev/usb/usb_device.c
==============================================================================
--- stable/9/sys/dev/usb/usb_device.c Mon Jun 8 09:25:01 2020
(r361908)
+++ stable/9/sys/dev/usb/usb_device.c Mon Jun 8 09:25:40 2020
(r361909)
@@ -1241,7 +1241,7 @@ usbd_set_parent_iface(struct usb_device *udev, uint8_t
{
struct usb_interface *iface;
- if (udev == NULL) {
+ if (udev == NULL || iface_index == parent_index) {
/* nothing to do */
return;
}
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