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PR/54762 CVS commit: [netbsd-9] src/sys/dev/usb

The following reply was made to PR kern/54762; it has been noted by GNATS.

From: "Martin Husemann" <>
Subject: PR/54762 CVS commit: [netbsd-9] src/sys/dev/usb
Date: Tue, 17 Dec 2019 12:55:10 +0000

 Module Name:	src
 Committed By:	martin
 Date:		Tue Dec 17 12:55:10 UTC 2019
 Modified Files:
 	src/sys/dev/usb [netbsd-9]: usbnet.c
 Log Message:
 Pull up following revision(s) (requested by riastradh in ticket #565):
 	sys/dev/usb/usbnet.c: revision 1.31
 	sys/dev/usb/usbnet.c: revision 1.32
 	sys/dev/usb/usbnet.c: revision 1.33
 Fix order of nulling un->un_pri->unp_ec.ec_mii.
 Can't null it until after if_detach prevents further use.
 While here, fix conditionals in usbnet_tick_task to use the unp_dying
 flag, not the nullness of mii (or of ifp, which never null because
 it's an embedded member).
 Fix inequality for refcnt drain: -1 here means all refs gone.
 Don't assume mii is not null here. Some drivers like urndis don't use
 mii, so they always have mii == NULL.
 ok riastradh. fixes PR kern/54762
 To generate a diff of this commit:
 cvs rdiff -u -r1.25.2.3 -r1.25.2.4 src/sys/dev/usb/usbnet.c
 Please note that diffs are not public domain; they are subject to the
 copyright notices on the relevant files.

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