Date: Fri, 31 May 2013 04:45:59 +0000 (UTC) From: "Justin T. Gibbs" <gibbs@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r251176 - head/sys/dev/xen/netfront Message-ID: <201305310445.r4V4jx7N018878@svn.freebsd.org>
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Author: gibbs Date: Fri May 31 04:45:59 2013 New Revision: 251176 URL: http://svnweb.freebsd.org/changeset/base/251176 Log: Make netif_free() safe to call on a partially initialized softc. Sponsored by: Spectra Logic Corporation MFC after: 1 week Modified: head/sys/dev/xen/netfront/netfront.c Modified: head/sys/dev/xen/netfront/netfront.c ============================================================================== --- head/sys/dev/xen/netfront/netfront.c Fri May 31 04:43:19 2013 (r251175) +++ head/sys/dev/xen/netfront/netfront.c Fri May 31 04:45:59 2013 (r251176) @@ -2177,8 +2177,11 @@ netif_free(struct netfront_info *info) callout_drain(&info->xn_stat_ch); netif_disconnect_backend(info); ifmedia_removeall(&info->sc_media); - ether_ifdetach(info->xn_ifp); - if_free(info->xn_ifp); + if (info->xn_ifp != NULL) { + ether_ifdetach(info->xn_ifp); + if_free(info->xn_ifp); + info->xn_ifp = NULL; + } } static void
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