Author: bryanv
Date: Mon Nov 3 22:17:25 2014
New Revision: 274063
URL: https://svnweb.freebsd.org/changeset/base/274063
Log:
Create the tty device after the port is completely initialized
This fixes a race with a tty open before the host is the ready.
MFC after: 1 month
Modified:
head/sys/dev/virtio/console/virtio_console.c
Modified: head/sys/dev/virtio/console/virtio_console.c
==============================================================================
--- head/sys/dev/virtio/console/virtio_console.c Mon Nov 3 21:26:11
2014 (r274062)
+++ head/sys/dev/virtio/console/virtio_console.c Mon Nov 3 22:17:25
2014 (r274063)
@@ -1048,17 +1048,17 @@ vtcon_port_create(struct vtcon_softc *sc
return (error);
}
- tty_makedev(port->vtcport_tty, NULL, "%s%r.%r", VTCON_TTY_PREFIX,
- device_get_unit(dev), id);
-
VTCON_LOCK(sc);
VTCON_PORT_LOCK(port);
- vtcon_port_enable_intr(port);
scport->vcsp_port = port;
+ vtcon_port_enable_intr(port);
vtcon_port_submit_event(port, VIRTIO_CONSOLE_PORT_READY, 1);
VTCON_PORT_UNLOCK(port);
VTCON_UNLOCK(sc);
+ tty_makedev(port->vtcport_tty, NULL, "%s%r.%r", VTCON_TTY_PREFIX,
+ device_get_unit(dev), id);
+
return (0);
}
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