virtio: console: rename variable

'ret' is a misnomer in discard_port_data() since we don't return the
value.  Rename it to 'err'.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

1 files changed, 5 insertions, 6 deletions

diff --git a/drivers/char/virtio_console.c b/drivers/char/virtio_console.c
index cb5edf33bebf..0538425e9a71 100644
--- a/drivers/char/virtio_console.c
+++ b/drivers/char/virtio_console.c
@@ -387,8 +387,7 @@ static void discard_port_data(struct port *port)
 {
         struct port_buffer *buf;
         struct virtqueue *vq;
-        unsigned int len;
-        int ret;
+        unsigned int len, err;
 
         if (!port->portdev) {
                 /* Device has been unplugged.  vqs are already gone. */
@@ -400,18 +399,18 @@ static void discard_port_data(struct port *port)
         else
                 buf = virtqueue_get_buf(vq, &len);
 
-        ret = 0;
+        err = 0;
         while (buf) {
                 if (add_inbuf(vq, buf) < 0) {
-                        ret++;
+                        err++;
                         free_buf(buf);
                 }
                 buf = virtqueue_get_buf(vq, &len);
         }
         port->inbuf = NULL;
-        if (ret)
+        if (err)
                 dev_warn(port->dev, "Errors adding %d buffers back to vq\n",
-                         ret);
+                         err);
 }
 
 static bool port_has_data(struct port *port)