In most cases the tx_loadsz is the same as fifosize. This
will store the fifosize in it if it was not separately
delivered from the driver.

Signed-off-by: Heikki Krogerus <heikki.kroge...@linux.intel.com>
---
 drivers/tty/serial/8250/8250.c |    4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/tty/serial/8250/8250.c b/drivers/tty/serial/8250/8250.c
index cf6a538..19ebbdf 100644
--- a/drivers/tty/serial/8250/8250.c
+++ b/drivers/tty/serial/8250/8250.c
@@ -3247,6 +3247,10 @@ int serial8250_register_8250_port(struct uart_8250_port 
*up)
                uart->tx_loadsz         = up->tx_loadsz;
                uart->capabilities      = up->capabilities;
 
+               /* Take tx_loadsz from fifosize if it wasn't set separately */
+               if (uart->port.fifosize && !uart->tx_loadsz)
+                       uart->tx_loadsz = uart->port.fifosize;
+
                if (up->port.dev)
                        uart->port.dev = up->port.dev;
 
-- 
1.7.10.4

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