From 2d24cdaa6e389f85dad51eda39f1c2684a4f15b0 Mon Sep 17 00:00:00 2001
From: Amit Shah <amit.shah@redhat.com>
Date: Wed, 14 Sep 2011 13:06:45 +0530
Subject: [PATCH] virtio: console: make discard_port_data() use get_inbuf()
discard_port_data() used virtqueue_get_buf() directly instead of using
get_inbuf(). Fix this, so that we get accounting for all received
bytes. This also simplifies the code a lot.
Signed-off-by: Amit Shah <amit.shah@redhat.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
---
drivers/char/virtio_console.c | 15 +++++----------
1 file changed, 5 insertions(+), 10 deletions(-)
diff --git a/drivers/char/virtio_console.c b/drivers/char/virtio_console.c
index 0538425e9a71..105181c1e6be 100644
--- a/drivers/char/virtio_console.c
+++ b/drivers/char/virtio_console.c
@@ -386,28 +386,23 @@ static int add_inbuf(struct virtqueue *vq, struct port_buffer *buf)
static void discard_port_data(struct port *port)
{
struct port_buffer *buf;
- struct virtqueue *vq;
- unsigned int len, err;
+ unsigned int err;
if (!port->portdev) {
/* Device has been unplugged. vqs are already gone. */
return;
}
- vq = port->in_vq;
- if (port->inbuf)
- buf = port->inbuf;
- else
- buf = virtqueue_get_buf(vq, &len);
+ buf = get_inbuf(port);
err = 0;
while (buf) {
- if (add_inbuf(vq, buf) < 0) {
+ if (add_inbuf(port->in_vq, buf) < 0) {
err++;
free_buf(buf);
}
- buf = virtqueue_get_buf(vq, &len);
+ port->inbuf = NULL;
+ buf = get_inbuf(port);
}
- port->inbuf = NULL;
if (err)
dev_warn(port->dev, "Errors adding %d buffers back to vq\n",
err);
--
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