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usbnet(9): Avoid ether_mediachange if stopped. 

We are called without IFNET_LOCK held here, so touching ifp->if_flags
is forbidden, but that's the first thing ether_mediachange does.

XXX not right either, need to eliminate the check from
ether_mediachange
This commit is contained in:
riastradh 2022-08-20 12:28:25 +00:00
parent bdbf5e4196
commit 60a84f4c27
1 changed files with 4 additions and 2 deletions
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6
sys/dev/usb/usbnet.c
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@ -1,4 +1,4 @@
/* $NetBSD: usbnet.c,v 1.97 2022/08/16 00:44:20 riastradh Exp $ */
/* $NetBSD: usbnet.c,v 1.98 2022/08/20 12:28:25 riastradh Exp $ */
/*
* Copyright (c) 2019 Matthew R. Green
@ -31,7 +31,7 @@
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: usbnet.c,v 1.97 2022/08/16 00:44:20 riastradh Exp $");
__KERNEL_RCSID(0, "$NetBSD: usbnet.c,v 1.98 2022/08/20 12:28:25 riastradh Exp $");
#include <sys/param.h>
#include <sys/kernel.h>
@ -986,6 +986,8 @@ usbnet_media_upd(struct ifnet *ifp)
mii_phy_reset(miisc);
}
if (unp->unp_stopping)
return 0;
return ether_mediachange(ifp);
}