[PATCH 06/31] serial: qcom_geni_serial: fix potential mem leak in qcom_geni_serial_probe()

Yangtao Li
2021-01-01T16:58:01Z

We should use dev_pm_opp_put_clkname() to free opp table each time
dev_pm_opp_of_add_table() got error.

Signed-off-by: Yangtao Li <tiny.windzz@gmail.com>
---
drivers/tty/serial/qcom_geni_serial.c | 10 ++++++----
1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/drivers/tty/serial/qcom_geni_serial.c b/drivers/tty/serial/qcom_geni_serial.c
index 291649f02821..5aada7ebae35 100644
--- a/drivers/tty/serial/qcom_geni_serial.c
+++ b/drivers/tty/serial/qcom_geni_serial.c
@@ -1438,9 +1438,12 @@ static int qcom_geni_serial_probe(struct platform_device *pdev)
return PTR_ERR(port->se.opp_table);
/* OPP table is optional */
ret = dev_pm_opp_of_add_table(&pdev->dev);
- if (ret && ret != -ENODEV) {
- dev_err(&pdev->dev, "invalid OPP table in device tree\n");
- goto put_clkname;
+ if (ret) {
+ dev_pm_opp_put_clkname(port->se.opp_table);
+ if (ret != -ENODEV) {
+ dev_err(&pdev->dev, "invalid OPP table in device tree\n");
+ return ret;
+ }
}

port->private_data.drv = drv;
@@ -1482,7 +1485,6 @@ static int qcom_geni_serial_probe(struct platform_device *pdev)
return 0;
err:
dev_pm_opp_of_remove_table(&pdev->dev);
-put_clkname:
dev_pm_opp_put_clkname(port->se.opp_table);
return ret;
}
--
2.25.1