From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
linux-serial@vger.kernel.org, linux-kernel@vger.kernel.org
Cc: Jiri Slaby <jirislaby@kernel.org>,
Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
Dan Carpenter <dan.carpenter@oracle.com>
Subject: [PATCH v1 1/1] serial: max310x: Unprepare and disable clock in error path
Date: Fri, 25 Jun 2021 18:37:33 +0300 [thread overview]
Message-ID: <20210625153733.12911-1-andriy.shevchenko@linux.intel.com> (raw)
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
reply other threads:[~2021-06-25 15:37 UTC|newest]
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