CVS commit: src/sys/dev/usb

["Taylor R Campbell" <riastradh%netbsd.org@localhost>]

Module Name:    src
Committed By:   riastradh
Date:           Sat Jun 12 12:11:28 UTC 2021

Modified Files:
        src/sys/dev/usb: usb_subr.c

Log Message:
usb(4): Verify dev->ud_subdevs is still there before freeing it.

usbd_attachinterfaces may sleep, and if it does, it releases the
kernel lock, in which case another thread may free dev->ud_subdevs.


To generate a diff of this commit:
cvs rdiff -u -r1.251 -r1.252 src/sys/dev/usb/usb_subr.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.