imx: serial: handle initialisation failure correctly

correctly de-initialise device when setting up failed,
call to pdata->exit() was missing.

Signed-off-by: Daniel Glöckner <dg@emlix.com>
Signed-off-by: Oskar Schirmer <os@emlix.com>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/drivers/serial/imx.c b/drivers/serial/imx.c
index e6c2ba2..cbd4f32 100644 (file)
--- a/drivers/serial/imx.c
+++ b/drivers/serial/imx.c
@@ -1157,10 +1157,15 @@ static int serial_imx_probe(struct platform_device *pdev)
                        goto clkput;
        }
 
-       uart_add_one_port(&imx_reg, &sport->port);
+       ret = uart_add_one_port(&imx_reg, &sport->port);
+       if (ret)
+               goto deinit;
        platform_set_drvdata(pdev, &sport->port);
 
        return 0;
+deinit:
+       if (pdata->exit)
+               pdata->exit(pdev);
 clkput:
        clk_put(sport->clk);
        clk_disable(sport->clk);