[PATCH] tty: serial: add missing clk_put()

[sunran001]

This patch fixes the following Coccinelle error:

./drivers/tty/serial/bcm63xx_uart.c:854:2-8: ERROR: missing clk_put;
clk_get on line 849 and execution via conditional on line 853

Signed-off-by: Ran Sun <sunran001@xxxxxxxxxx>
---
 drivers/tty/serial/bcm63xx_uart.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/tty/serial/bcm63xx_uart.c 
b/drivers/tty/serial/bcm63xx_uart.c
index 55e82d0bf92d..7353b683952d 100644
--- a/drivers/tty/serial/bcm63xx_uart.c
+++ b/drivers/tty/serial/bcm63xx_uart.c
@@ -851,6 +851,7 @@ static int bcm_uart_probe(struct platform_device 
*pdev)
         clk = of_clk_get(pdev->dev.of_node, 0);

     if (IS_ERR(clk))
+        clk_put(clk);
         return -ENODEV;

     port->iotype = UPIO_MEM;