tty/serial/sirf: fix error propagation in sirfsoc_uart_probe()

If pinctrl_get_select_default() fails, sirfsoc_uart_probe()
returns IS_ERR(result) instead of PTR_ERR(result).

Found by Linux Driver Verification project (linuxtesting.org).

Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

1 files changed, 3 insertions, 2 deletions

diff --git a/drivers/tty/serial/sirfsoc_uart.c b/drivers/tty/serial/sirfsoc_uart.c
index 03465b673945..1fd564b8194b 100644
--- a/drivers/tty/serial/sirfsoc_uart.c
+++ b/drivers/tty/serial/sirfsoc_uart.c
@@ -687,9 +687,10 @@ int sirfsoc_uart_probe(struct platform_device *pdev)
 
         if (sirfport->hw_flow_ctrl) {
                 sirfport->p = pinctrl_get_select_default(&pdev->dev);
-                ret = IS_ERR(sirfport->p);
-                if (ret)
+                if (IS_ERR(sirfport->p)) {
+                        ret = PTR_ERR(sirfport->p);
                         goto err;
+                }
         }
 
         sirfport->clk = clk_get(&pdev->dev, NULL);