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char/serial: Fix emptyness check

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This was guarding against a full fifo rather than an empty fifo when
popping. Fix.

Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Reviewed-by: Martin Kletzander <mkletzan@redhat.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
This commit is contained in:
Peter Crosthwaite
2014-02-15 16:10:25 +04:00
committed by Michael Tokarev
parent 5556332aba
commit 88c1ee73d3
1 changed files with 1 additions and 1 deletions
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hw/char/serial.c
+1 -1
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@@ -225,7 +225,7 @@ static gboolean serial_xmit(GIOChannel *chan, GIOCondition cond, void *opaque)
if (s->tsr_retry <= 0) {
if (s->fcr & UART_FCR_FE) {
s->tsr = fifo8_is_full(&s->xmit_fifo) ?
s->tsr = fifo8_is_empty(&s->xmit_fifo) ?
0 : fifo8_pop(&s->xmit_fifo);
if (!s->xmit_fifo.num) {
s->lsr |= UART_LSR_THRE;