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Diffstat (limited to 'Documentation/lguest/lguest.c')
-rw-r--r--Documentation/lguest/lguest.c11
1 files changed, 4 insertions, 7 deletions
diff --git a/Documentation/lguest/lguest.c b/Documentation/lguest/lguest.c
index 9f3240c45718..8704600c5e42 100644
--- a/Documentation/lguest/lguest.c
+++ b/Documentation/lguest/lguest.c
@@ -830,15 +830,14 @@ static bool handle_console_input(struct device *dev)
static void handle_console_output(struct virtqueue *vq, bool timeout)
{
unsigned int head, out, in;
- int len;
struct iovec iov[vq->vring.num];
/* Keep getting output buffers from the Guest until we run out. */
while ((head = get_vq_desc(vq, iov, &out, &in)) != vq->vring.num) {
if (in)
errx(1, "Input buffers in output queue?");
- len = writev(STDOUT_FILENO, iov, out);
- add_used_and_trigger(vq, head, len);
+ writev(STDOUT_FILENO, iov, out);
+ add_used_and_trigger(vq, head, 0);
}
}
@@ -870,7 +869,6 @@ static void block_vq(struct virtqueue *vq)
static void handle_net_output(struct virtqueue *vq, bool timeout)
{
unsigned int head, out, in, num = 0;
- int len;
struct iovec iov[vq->vring.num];
static int last_timeout_num;
@@ -878,10 +876,9 @@ static void handle_net_output(struct virtqueue *vq, bool timeout)
while ((head = get_vq_desc(vq, iov, &out, &in)) != vq->vring.num) {
if (in)
errx(1, "Input buffers in output queue?");
- len = writev(vq->dev->fd, iov, out);
- if (len < 0)
+ if (writev(vq->dev->fd, iov, out) < 0)
err(1, "Writing network packet to tun");
- add_used_and_trigger(vq, head, len);
+ add_used_and_trigger(vq, head, 0);
num++;
}