[PATCH 4/4] serial: uartps: Remove static port array

[Michal Simek]

Allocate uart port structure dynamically.

Signed-off-by: Michal Simek <michal.si...@xilinx.com>
Reviewed-by: Alan Cox <a...@linux.intel.com>
---

 drivers/tty/serial/xilinx_uartps.c | 16 ++++------------
 1 file changed, 4 insertions(+), 12 deletions(-)

diff --git a/drivers/tty/serial/xilinx_uartps.c 
b/drivers/tty/serial/xilinx_uartps.c
index f7d527a1c532..0fc9de20843c 100644
--- a/drivers/tty/serial/xilinx_uartps.c
+++ b/drivers/tty/serial/xilinx_uartps.c
@@ -1097,8 +1097,6 @@ static const struct uart_ops cdns_uart_ops = {
 #endif
 };
 
-static struct uart_port cdns_uart_port[CDNS_UART_NR_PORTS];
-
 #ifdef CONFIG_SERIAL_XILINX_PS_UART_CONSOLE
 /**
  * cdns_uart_console_wait_tx - Wait for the TX to be full
@@ -1438,6 +1436,9 @@ static int cdns_uart_probe(struct platform_device *pdev)
                        GFP_KERNEL);
        if (!cdns_uart_data)
                return -ENOMEM;
+       port = devm_kzalloc(&pdev->dev, sizeof(*port), GFP_KERNEL);
+       if (!port)
+               return -ENOMEM;
 
        match = of_match_node(cdns_uart_of_match, pdev->dev.of_node);
        if (match && match->data) {
@@ -1503,16 +1504,7 @@ static int cdns_uart_probe(struct platform_device *pdev)
        if (id < 0)
                id = 0;
 
-       /* Try the given port id if failed use default method */
-       if (id < CDNS_UART_NR_PORTS && cdns_uart_port[id].mapbase != 0) {
-               /* Find the next unused port */
-               for (id = 0; id < CDNS_UART_NR_PORTS; id++)
-                       if (cdns_uart_port[id].mapbase == 0)
-                               break;
-       }
-
-       port = &cdns_uart_port[id];
-       if (!port || id >= CDNS_UART_NR_PORTS) {
+       if (id >= CDNS_UART_NR_PORTS) {
                dev_err(&pdev->dev, "Cannot get uart_port structure\n");
                rc = -ENODEV;
                goto err_out_notif_unreg;
-- 
2.17.0