[PATCH 29/37] Don't clobber spinlocks in 8250.

[ddaney@xxxxxxxxxxxxxxxxxx]

From: David Daney <ddaney@xxxxxxxxxxxxxxxxxx>

In serial8250_isa_init_ports(), the port's lock is initialized.  We
should not overwrite it.  Only copy in the fields we need.

Signed-off-by: David Daney <ddaney@xxxxxxxxxxxxxxxxxx>
Signed-off-by: Tomaso Paoletti <tpaoletti@xxxxxxxxxxxxxxxxxx>
---
 drivers/serial/8250.c |   15 +++++++++++++--
 1 files changed, 13 insertions(+), 2 deletions(-)

diff --git a/drivers/serial/8250.c b/drivers/serial/8250.c
index 1528de2..d339ac1 100644
--- a/drivers/serial/8250.c
+++ b/drivers/serial/8250.c
@@ -2706,12 +2706,23 @@ static struct uart_driver serial8250_reg = {
  */
 int __init early_serial_setup(struct uart_port *port)
 {
+	struct uart_port *p;
+
 	if (port->line >= ARRAY_SIZE(serial8250_ports))
 		return -ENODEV;
 
 	serial8250_isa_init_ports();
-	serial8250_ports[port->line].port	= *port;
-	serial8250_ports[port->line].port.ops	= &serial8250_pops;
+	p = &serial8250_ports[port->line].port;
+	p->iobase       = port->iobase;
+	p->membase      = port->membase;
+	p->irq          = port->irq;
+	p->uartclk      = port->uartclk;
+	p->fifosize     = port->fifosize;
+	p->regshift     = port->regshift;
+	p->iotype       = port->iotype;
+	p->flags        = port->flags;
+	p->mapbase      = port->mapbase;
+	p->private_data = port->private_data;
 	return 0;
 }
 
-- 
1.5.5.1