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authorAmit Shah <amit.shah@redhat.com>2011-09-14 13:06:45 +0530
committerRusty Russell <rusty@rustcorp.com.au>2011-11-02 11:41:00 +1030
commit2d24cdaa6e389f85dad51eda39f1c2684a4f15b0 (patch)
tree88f02e92c459fa8d768c1ae6fbcfa8a4ccfcdc0e /drivers/char/virtio_console.c
parentce072a0cee420782ed0a079ac17c7ca26056fb95 (diff)
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>
Diffstat (limited to 'drivers/char/virtio_console.c')
-rw-r--r--drivers/char/virtio_console.c15
1 files changed, 5 insertions, 10 deletions
diff --git a/drivers/char/virtio_console.c b/drivers/char/virtio_console.c
index 0538425e9a7..105181c1e6b 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);