4.2-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Masahiro Yamada <[email protected]>

commit e70e69bf205e6d1f742f1cf1935b155417c9e29a upstream.

If serial8250_register_8250_port() fails, disable and unprepare the
clock before exiting.

Fixes: 1a8d2903cb6a ("serial: 8250_uniphier: add UniPhier serial driver")
Signed-off-by: Masahiro Yamada <[email protected]>
Reviewed-by: Matthias Brugger <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>

---
 drivers/tty/serial/8250/8250_uniphier.c |    1 +
 1 file changed, 1 insertion(+)

--- a/drivers/tty/serial/8250/8250_uniphier.c
+++ b/drivers/tty/serial/8250/8250_uniphier.c
@@ -218,6 +218,7 @@ static int uniphier_uart_probe(struct pl
        ret = serial8250_register_8250_port(&up);
        if (ret < 0) {
                dev_err(dev, "failed to register 8250 port\n");
+               clk_disable_unprepare(priv->clk);
                return ret;
        }
 


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