This is a note to let you know that I've just added the patch titled
pinctrl: ti: ti-iodelay: fix possible memory leak when pinctrl_enable() fails
to the 4.19-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
pinctrl-ti-ti-iodelay-fix-possible-memory-leak-when-.patch
and it can be found in the queue-4.19 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 1f27781d8dd279319854e0384f3468b707750a11
Author: Yang Yingliang <yangyingliang@xxxxxxxxxx>
Date: Thu Jun 6 10:37:04 2024 +0800
pinctrl: ti: ti-iodelay: fix possible memory leak when pinctrl_enable() fails
[ Upstream commit 9b401f4a7170125365160c9af267a41ff6b39001 ]
This driver calls pinctrl_register_and_init() which is not
devm_ managed, it will leads memory leak if pinctrl_enable()
fails. Replace it with devm_pinctrl_register_and_init().
And add missing of_node_put() in the error path.
Fixes: 5038a66dad01 ("pinctrl: core: delete incorrect free in pinctrl_enable()")
Signed-off-by: Yang Yingliang <yangyingliang@xxxxxxxxxx>
Reviewed-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
Link: https://lore.kernel.org/r/20240606023704.3931561-4-yangyingliang@xxxxxxxxxx
Signed-off-by: Linus Walleij <linus.walleij@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/pinctrl/ti/pinctrl-ti-iodelay.c b/drivers/pinctrl/ti/pinctrl-ti-iodelay.c
index 1c4196f40e8d6..e86b765141a63 100644
--- a/drivers/pinctrl/ti/pinctrl-ti-iodelay.c
+++ b/drivers/pinctrl/ti/pinctrl-ti-iodelay.c
@@ -881,7 +881,7 @@ static int ti_iodelay_probe(struct platform_device *pdev)
iod->desc.name = dev_name(dev);
iod->desc.owner = THIS_MODULE;
- ret = pinctrl_register_and_init(&iod->desc, dev, iod, &iod->pctl);
+ ret = devm_pinctrl_register_and_init(dev, &iod->desc, iod, &iod->pctl);
if (ret) {
dev_err(dev, "Failed to register pinctrl\n");
goto exit_out;
@@ -889,7 +889,11 @@ static int ti_iodelay_probe(struct platform_device *pdev)
platform_set_drvdata(pdev, iod);
- return pinctrl_enable(iod->pctl);
+ ret = pinctrl_enable(iod->pctl);
+ if (ret)
+ goto exit_out;
+
+ return 0;
exit_out:
of_node_put(np);
@@ -906,9 +910,6 @@ static int ti_iodelay_remove(struct platform_device *pdev)
{
struct ti_iodelay_device *iod = platform_get_drvdata(pdev);
- if (iod->pctl)
- pinctrl_unregister(iod->pctl);
-
ti_iodelay_pinconf_deinit_dev(iod);
/* Expect other allocations to be freed by devm */
