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-rw-r--r--hw/char/serial.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/hw/char/serial.c b/hw/char/serial.c
index 605b0d02f9..6de6c29779 100644
--- a/hw/char/serial.c
+++ b/hw/char/serial.c
@@ -260,7 +260,7 @@ static void serial_xmit(SerialState *s)
if (s->mcr & UART_MCR_LOOP) {
/* in loopback mode, say that we just received a char */
serial_receive1(s, &s->tsr, 1);
- } else if (qemu_chr_fe_write(&s->chr, &s->tsr, 1) != 1 &&
+ } else if (qemu_chr_fe_write(&s->chr, &s->tsr, 1) == 0 &&
s->tsr_retry < MAX_XMIT_RETRY) {
assert(s->watch_tag == 0);
s->watch_tag =