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hw/char/spapr_vty: Return amount of free buffer entries in vty_can_receive() 

The can_receive() callbacks of the character devices should return
the amount of characters that can be accepted at once, not just a
boolean value (which rather means only one character at a time).

Signed-off-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
This commit is contained in:
Thomas Huth 2016-11-18 10:09:37 +01:00 committed by David Gibson
parent 0d28aa197d
commit 8a273cbe53
1 changed files with 1 additions and 1 deletions
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2
hw/char/spapr_vty.c
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@ -25,7 +25,7 @@ static int vty_can_receive(void *opaque)
{
VIOsPAPRVTYDevice *dev = VIO_SPAPR_VTY_DEVICE(opaque);
return (dev->in - dev->out) < VTERM_BUFSIZE;
return VTERM_BUFSIZE - (dev->in - dev->out);
}
static void vty_receive(void *opaque, const uint8_t *buf, int size)