Author: np Date: Tue Apr 30 21:24:44 2019 New Revision: 346974 URL: https://svnweb.freebsd.org/changeset/base/346974
Log: MFC r340375 (by jch@): cxgbe/netmap: Fix cxgbe netmap when interface is DOWN A kernel panic can occur if the cxgbe interface is DOWN when activating netmap. This patch prevents the driver from freeing up cxgbe netmap resources when they have not been allocated. Submitted by: Nicolas Witkowski <nwitkow...@verisign.com> Reviewed by: np Sponsored by: Verisign, Inc. Differential Revision: https://reviews.freebsd.org/D17802 Modified: stable/12/sys/dev/cxgbe/t4_netmap.c Directory Properties: stable/12/ (props changed) Modified: stable/12/sys/dev/cxgbe/t4_netmap.c ============================================================================== --- stable/12/sys/dev/cxgbe/t4_netmap.c Tue Apr 30 18:48:20 2019 (r346973) +++ stable/12/sys/dev/cxgbe/t4_netmap.c Tue Apr 30 21:24:44 2019 (r346974) @@ -492,6 +492,9 @@ cxgbe_netmap_off(struct adapter *sc, struct vi_info *v ASSERT_SYNCHRONIZED_OP(sc); + if (!nm_netmap_on(na)) + return (0); + if ((vi->flags & VI_INIT_DONE) == 0) return (0); _______________________________________________ svn-src-all@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/svn-src-all To unsubscribe, send any mail to "svn-src-all-unsubscr...@freebsd.org"
