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sys/dev/xen/netfront/netfront.c:

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In netif_free(), call ifmedia_removeall() after ether_ifdetach()
	so that bpf listeners are detached, any link state processing
	is completed, and there is no chance for external reference to media
	information.

Suggested by:	yongari
MFC after:	1 week
This commit is contained in:
Justin T. Gibbs 2013-06-14 03:31:11 +00:00
parent 86241d89a9
commit d5aeb77948
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=251729
1 changed files with 1 additions and 1 deletions
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2
sys/dev/xen/netfront/netfront.c
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@ -2178,12 +2178,12 @@ netif_free(struct netfront_info *info)
XN_UNLOCK(info);
callout_drain(&info->xn_stat_ch);
netif_disconnect_backend(info);
ifmedia_removeall(&info->sc_media);
if (info->xn_ifp != NULL) {
ether_ifdetach(info->xn_ifp);
if_free(info->xn_ifp);
info->xn_ifp = NULL;
}
ifmedia_removeall(&info->sc_media);
}
static void