X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=drivers%2Fserial%2F8250.c;h=d61f7a24f98efdcd73bb91d292f25c0b42d6d8cc;hb=9c920a8402f2bb9bd931801d429b65f4eb6a262b;hp=4906b57511dc07ce2587717cec21825b22629c04;hpb=a91482bdcc2e0f6035702e46f1b99043a0893346;p=linux-2.6.git

diff --git a/drivers/serial/8250.c b/drivers/serial/8250.c
index 4906b5751..d61f7a24f 100644
--- a/drivers/serial/8250.c
+++ b/drivers/serial/8250.c
@@ -1687,6 +1687,8 @@ static void serial8250_release_port(struct uart_port *port)
 	struct uart_8250_port *up = (struct uart_8250_port *)port;
 	unsigned long start, offset = 0, size = 0;
 
+	if (!(up->port.flags & UPF_RESOURCES))
+		return;
 	if (up->port.type == PORT_RSA) {
 		offset = UART_RSA_BASE << up->port.regshift;
 		size = 8;
@@ -1731,13 +1733,15 @@ static int serial8250_request_port(struct uart_port *port)
 	struct resource *res = NULL, *res_rsa = NULL;
 	int ret = 0;
 
-	if (up->port.type == PORT_RSA) {
-		ret = serial8250_request_rsa_resource(up, &res_rsa);
-		if (ret < 0)
-			return ret;
-	}
+	if (up->port.flags & UPF_RESOURCES) {
+		if (up->port.type == PORT_RSA) {
+			ret = serial8250_request_rsa_resource(up, &res_rsa);
+			if (ret < 0)
+				return ret;
+		}
 
-	ret = serial8250_request_std_resource(up, &res);
+		ret = serial8250_request_std_resource(up, &res);
+	}
 
 	/*
 	 * If we have a mapbase, then request that as well.
@@ -1778,13 +1782,17 @@ static void serial8250_config_port(struct uart_port *port, int flags)
 	 * Find the region that we can probe for.  This in turn
 	 * tells us whether we can probe for the type of port.
 	 */
-	ret = serial8250_request_std_resource(up, &res_std);
-	if (ret < 0)
-		return;
+	if (up->port.flags & UPF_RESOURCES) {
+		ret = serial8250_request_std_resource(up, &res_std);
+		if (ret < 0)
+			return;
 
-	ret = serial8250_request_rsa_resource(up, &res_rsa);
-	if (ret < 0)
+		ret = serial8250_request_rsa_resource(up, &res_rsa);
+		if (ret < 0)
+			probeflags &= ~PROBE_RSA;
+	} else {
 		probeflags &= ~PROBE_RSA;
+	}
 
 	if (flags & UART_CONFIG_TYPE)
 		autoconfig(up, probeflags);
@@ -1859,7 +1867,8 @@ static void __init serial8250_isa_init_ports(void)
 		up->port.iobase   = old_serial_port[i].port;
 		up->port.irq      = irq_canonicalize(old_serial_port[i].irq);
 		up->port.uartclk  = old_serial_port[i].baud_base * 16;
-		up->port.flags    = old_serial_port[i].flags;
+		up->port.flags    = old_serial_port[i].flags |
+				    UPF_RESOURCES;
 		up->port.hub6     = old_serial_port[i].hub6;
 		up->port.membase  = old_serial_port[i].iomem_base;
 		up->port.iotype   = old_serial_port[i].io_type;
@@ -2004,7 +2013,7 @@ static int __init serial8250_console_setup(struct console *co, char *options)
 	return uart_set_options(port, co, baud, parity, bits, flow);
 }
 
-static struct uart_driver serial8250_reg;
+extern struct uart_driver serial8250_reg;
 static struct console serial8250_console = {
 	.name		= "ttyS",
 	.write		= serial8250_console_write,