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Don't allow USB device drivers to parent own interface.

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It will prevent proper USB device detach.

MFC after:	3 days
Sponsored by:	Mellanox Technologies
This commit is contained in:
Hans Petter Selasky 2020-05-28 08:05:46 +00:00
parent a37a5246ca
commit 5e0552018c
1 changed files with 1 additions and 1 deletions
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2
sys/dev/usb/usb_device.c
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@ -1402,7 +1402,7 @@ usbd_set_parent_iface(struct usb_device *udev, uint8_t iface_index,
{
struct usb_interface *iface;
if (udev == NULL) {
if (udev == NULL || iface_index == parent_index) {
/* nothing to do */
return;
}