Author: araujo Date: Tue May 15 05:55:29 2018 New Revision: 333622 URL: https://svnweb.freebsd.org/changeset/base/333622
Log: vq_getchain() can return -1 if some descriptor(s) are invalid and prints a diagnostic message. So we do a sanity checking on the return value of vq_getchain(). Spotted by: gcc49 Reviewed by: avg MFC after: 4 weeks Sponsored by: iXsystems Inc. Differential Revision: https://reviews.freebsd.org/D15388 Modified: head/usr.sbin/bhyve/pci_virtio_console.c Modified: head/usr.sbin/bhyve/pci_virtio_console.c ============================================================================== --- head/usr.sbin/bhyve/pci_virtio_console.c Tue May 15 04:31:11 2018 (r333621) +++ head/usr.sbin/bhyve/pci_virtio_console.c Tue May 15 05:55:29 2018 (r333622) @@ -579,6 +579,7 @@ pci_vtcon_notify_tx(void *vsc, struct vqueue_info *vq) while (vq_has_descs(vq)) { n = vq_getchain(vq, &idx, iov, 1, flags); + assert(n >= 1); if (port != NULL) port->vsp_cb(port, port->vsp_arg, iov, 1); _______________________________________________ svn-src-head@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/svn-src-head To unsubscribe, send any mail to "svn-src-head-unsubscr...@freebsd.org"
