From b430428a188e8a434325e251d0704af4b88b4711 Mon Sep 17 00:00:00 2001 From: David Daney Date: Fri, 2 Jan 2009 13:49:41 +0000 Subject: 8250: Don't clobber spinlocks. In serial8250_isa_init_ports(), the port's lock is initialized. We should not overwrite it. In early_serial_setup(), only copy in the fields we need. Since the early console code only uses a subset of the fields, these are sufficient. Signed-off-by: David Daney Signed-off-by: Tomaso Paoletti Signed-off-by: Andrew Morton Signed-off-by: Alan Cox Signed-off-by: Linus Torvalds --- drivers/serial/8250.c | 15 +++++++++++++-- 1 file changed, 13 insertions(+), 2 deletions(-) diff --git a/drivers/serial/8250.c b/drivers/serial/8250.c index 303272af386..8e28750a405 100644 --- a/drivers/serial/8250.c +++ b/drivers/serial/8250.c @@ -2752,12 +2752,23 @@ 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; } -- cgit v1.2.3-70-g09d2