@@ -65,7 +65,13 @@ static int spapr_vty_getchars(VIOsPAPRVTYDevice *dev, uint8_t *buf, int max)
static void spapr_vty_putchars(VIOsPAPRVTYDevice *dev,
const uint8_t *buf, int len)
- /* FIXME: should check the qemu_chr_fe_write() return value */
+ /* There is no flow control with this interface so we can't really
+ * do anything if we are unable to write out data. So we ignore errors
+ * here and silently drop the data.
+ * Our only option would be buffering but the kernel already has a buffer
+ * so that would only delay the inevitable.
qemu_chr_fe_write(dev->chardev, buf, len);