serial: 8250: Simplify capabilities reset at port unregister

Since uart->port.type has just reset to PORT_UNKNOWN, capabilities
are reset to uart_config[PORT_UNKNOWN].flags, which is 0.

Removes unnecessary dependency on uart_config[].

Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/tty/serial/8250/8250_core.c b/drivers/tty/serial/8250/8250_core.c
index 60247030785e3c45903b51d2e38fc778d2ad75f3..97bcfeab8d6eefa9a870532d4553610e88b8c0d2 100644 (file)
--- a/drivers/tty/serial/8250/8250_core.c
+++ b/drivers/tty/serial/8250/8250_core.c
@@ -3747,7 +3747,7 @@ void serial8250_unregister_port(int line)
                uart->port.flags &= ~UPF_BOOT_AUTOCONF;
                uart->port.type = PORT_UNKNOWN;
                uart->port.dev = &serial8250_isa_devs->dev;
-               uart->capabilities = uart_config[uart->port.type].flags;
+               uart->capabilities = 0;
                uart_add_one_port(&serial8250_reg, &uart->port);
        } else {
                uart->port.dev = NULL;