Merge branch 'tty-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh...

[pandora-kernel.git] / drivers / char / virtio_console.c

diff --git a/drivers/char/virtio_console.c b/drivers/char/virtio_console.c
index 4903931..838568a 100644 (file)
--- a/drivers/char/virtio_console.c
+++ b/drivers/char/virtio_console.c
@@ -388,6 +388,10 @@ static void discard_port_data(struct port *port)
        unsigned int len;
        int ret;
 
+       if (!port->portdev) {
+               /* Device has been unplugged.  vqs are already gone. */
+               return;
+       }
        vq = port->in_vq;
        if (port->inbuf)
                buf = port->inbuf;
@@ -470,6 +474,10 @@ static void reclaim_consumed_buffers(struct port *port)
        void *buf;
        unsigned int len;
 
+       if (!port->portdev) {
+               /* Device has been unplugged.  vqs are already gone. */
+               return;
+       }
        while ((buf = virtqueue_get_buf(port->out_vq, &len))) {
                kfree(buf);
                port->outvq_full = false;
@@ -1272,18 +1280,7 @@ static void unplug_port(struct port *port)
                spin_lock_irq(&pdrvdata_lock);
                list_del(&port->cons.list);
                spin_unlock_irq(&pdrvdata_lock);
-#if 0
-               /*
-                * hvc_remove() not called as removing one hvc port
-                * results in other hvc ports getting frozen.
-                *
-                * Once this is resolved in hvc, this functionality
-                * will be enabled.  Till that is done, the -EPIPE
-                * return from get_chars() above will help
-                * hvc_console.c to clean up on ports we remove here.
-                */
                hvc_remove(port->cons.hvc);
-#endif
        }
 
        /* Remove unused data this port might have received. */