Merge tag 'ext4_for_linus_stable' of git://git.kernel.org/pub/scm/linux/kernel/git...

[karo-tx-linux.git] / drivers / tty / serial / 8250 / 8250_core.c

diff --git a/drivers/tty/serial/8250/8250_core.c b/drivers/tty/serial/8250/8250_core.c
index b5def356af63b70e3ebc2e23a48da0753e41b47e..1aab3010fbfae76e2c25cb60085f21051a1f24cf 100644 (file)
--- a/drivers/tty/serial/8250/8250_core.c
+++ b/drivers/tty/serial/8250/8250_core.c
@@ -1043,13 +1043,24 @@ int serial8250_register_8250_port(struct uart_8250_port *up)
                if (up->dl_write)
                        uart->dl_write = up->dl_write;
 
-               if (serial8250_isa_config != NULL)
-                       serial8250_isa_config(0, &uart->port,
-                                       &uart->capabilities);
+               if (uart->port.type != PORT_8250_CIR) {
+                       if (serial8250_isa_config != NULL)
+                               serial8250_isa_config(0, &uart->port,
+                                               &uart->capabilities);
+
+                       ret = uart_add_one_port(&serial8250_reg,
+                                               &uart->port);
+                       if (ret == 0)
+                               ret = uart->port.line;
+               } else {
+                       dev_info(uart->port.dev,
+                               "skipping CIR port at 0x%lx / 0x%llx, IRQ %d\n",
+                               uart->port.iobase,
+                               (unsigned long long)uart->port.mapbase,
+                               uart->port.irq);
 
-               ret = uart_add_one_port(&serial8250_reg, &uart->port);
-               if (ret == 0)
-                       ret = uart->port.line;
+                       ret = 0;
+               }
        }
        mutex_unlock(&serial_mutex);