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authorAndré Fabian Silva Delgado <emulatorman@parabola.nu>2016-11-11 16:22:27 -0300
committerAndré Fabian Silva Delgado <emulatorman@parabola.nu>2016-11-11 16:22:27 -0300
commit29f5b648fa0b31ad614c78468b9279e5fa96397a (patch)
tree385e76324c4e95e90b16889937e7c24e6f7d4f4a /drivers/char
parent1eae9639aac0f8de4d284f567ec722a822b52513 (diff)
Linux-libre 4.8.7-gnupck-4.8.7-gnu
Diffstat (limited to 'drivers/char')
-rw-r--r--drivers/char/virtio_console.c22
1 files changed, 16 insertions, 6 deletions
diff --git a/drivers/char/virtio_console.c b/drivers/char/virtio_console.c
index 5da47e26a..4aae0d27e 100644
--- a/drivers/char/virtio_console.c
+++ b/drivers/char/virtio_console.c
@@ -1540,19 +1540,29 @@ static void remove_port_data(struct port *port)
spin_lock_irq(&port->inbuf_lock);
/* Remove unused data this port might have received. */
discard_port_data(port);
+ spin_unlock_irq(&port->inbuf_lock);
/* Remove buffers we queued up for the Host to send us data in. */
- while ((buf = virtqueue_detach_unused_buf(port->in_vq)))
- free_buf(buf, true);
- spin_unlock_irq(&port->inbuf_lock);
+ do {
+ spin_lock_irq(&port->inbuf_lock);
+ buf = virtqueue_detach_unused_buf(port->in_vq);
+ spin_unlock_irq(&port->inbuf_lock);
+ if (buf)
+ free_buf(buf, true);
+ } while (buf);
spin_lock_irq(&port->outvq_lock);
reclaim_consumed_buffers(port);
+ spin_unlock_irq(&port->outvq_lock);
/* Free pending buffers from the out-queue. */
- while ((buf = virtqueue_detach_unused_buf(port->out_vq)))
- free_buf(buf, true);
- spin_unlock_irq(&port->outvq_lock);
+ do {
+ spin_lock_irq(&port->outvq_lock);
+ buf = virtqueue_detach_unused_buf(port->out_vq);
+ spin_unlock_irq(&port->outvq_lock);
+ if (buf)
+ free_buf(buf, true);
+ } while (buf);
}
/*