[PATCH 06/31] serial: qcom_geni_serial: fix potential mem leak in qcom_geni_serial_probe()
From: Yangtao Li <tiny.windzz@gmail.com>
Date: 2021-01-01 16:58:01
Also in:
dri-devel, linux-arm-msm, linux-media, linux-mmc, linux-pm, linux-samsung-soc, linux-spi, linux-tegra, lkml
Subsystem:
arm/qualcomm mailing list, the rest, tty layer and serial drivers · Maintainers:
Linus Torvalds, Greg Kroah-Hartman, Jiri Slaby
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