[PATCH v1 1/1] serial: max310x: Unprepare and disable clock in error path

[Andy Shevchenko <andriy.shevchenko@linux.intel.com>]

In one error case the clock may be left prepared and enabled.
Unprepare and disable clock in that case to balance state of
the hardware.

Fixes: d4d6f03c4fb3 ("serial: max310x: Try to get crystal clock rate from property")
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
---
 drivers/tty/serial/max310x.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/tty/serial/max310x.c b/drivers/tty/serial/max310x.c
index 0c1e4df52215..ef11860cd69e 100644
--- a/drivers/tty/serial/max310x.c
+++ b/drivers/tty/serial/max310x.c
@@ -1293,7 +1293,8 @@ static int max310x_probe(struct device *dev, const struct max310x_devtype *devty
 		freq = uartclk;
 	if (freq == 0) {
 		dev_err(dev, "Cannot get clock rate\n");
-		return -EINVAL;
+		ret = -EINVAL;
+		goto out_clk;
 	}
 
 	if (xtal) {
-- 
2.30.2