On Wed, Jan 16, 2013 at 6:52 PM, Cong Ding <dinggnu@xxxxxxxxx> wrote:
> After we check (state.kcount != 0), state.kcount has to be 0 in all the "else"
> branchs.
>
> Signed-off-by: Cong Ding <dinggnu@xxxxxxxxx>
> ---
> tools/kvm/hw/i8042.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/tools/kvm/hw/i8042.c b/tools/kvm/hw/i8042.c
> index 9f8be6a..9035732 100644
> --- a/tools/kvm/hw/i8042.c
> +++ b/tools/kvm/hw/i8042.c
> @@ -189,7 +189,7 @@ static u32 kbd_read_data(void)
> state.mcount--;
> kvm__irq_line(state.kvm, AUX_IRQ, 0);
> kbd_update_irq();
> - } else if (state.kcount == 0) {
> + } else {
> i = state.kread - 1;
> if (i < 0)
> i = QUEUE_SIZE;
This doesn't look right. The 'kcount' field is an int so the value can
be negative.
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