ipack/devices/ipoctal: don't check if nb_bytes is < 0

It is an unsigned int so that check is pointless.

Signed-off-by: Alberto Garcia <agarcia@igalia.com>
Signed-off-by: Samuel Iglesias Gonsalvez <siglesias@igalia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/drivers/ipack/devices/ipoctal.c b/drivers/ipack/devices/ipoctal.c
index e66135d..a33a849 100644
--- a/drivers/ipack/devices/ipoctal.c
+++ b/drivers/ipack/devices/ipoctal.c
@@ -183,10 +183,8 @@
 	unsigned char value;
 	unsigned int *pointer_write = &channel->pointer_write;
 
-	if (channel->nb_bytes <= 0) {
-		channel->nb_bytes = 0;
+	if (channel->nb_bytes == 0)
 		return;
-	}
 
 	value = channel->tty_port.xmit_buf[*pointer_write];
 	iowrite8(value, &channel->regs->w.thr);