Signed-off-by: Anthony Liguori <aligu...@us.ibm.com>
---
hw/char/spapr_vty.c | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/hw/char/spapr_vty.c b/hw/char/spapr_vty.c
index aa56f10..6834fe2 100644
--- a/hw/char/spapr_vty.c
+++ b/hw/char/spapr_vty.c
@@ -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);
}
--
1.8.0
