This is a note to let you know that I've just added the patch titled
clk: oxnas: Hold reference returned by of_get_parent()
to the 5.10-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:
clk-oxnas-hold-reference-returned-by-of_get_parent.patch
and it can be found in the queue-5.10 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit c9c2771130d43915a6a4eccbf40e2c10f03aa212
Author: Liang He <windhl@xxxxxxx>
Date: Tue Jun 28 22:31:55 2022 +0800
clk: oxnas: Hold reference returned by of_get_parent()
[ Upstream commit 1d6aa08c54cd0e005210ab8e3b1e92ede70f8a4f ]
In oxnas_stdclk_probe(), we need to hold the reference returned by
of_get_parent() and use it to call of_node_put() for refcount
balance.
Fixes: 0bbd72b4c64f ("clk: Add Oxford Semiconductor OXNAS Standard Clocks")
Signed-off-by: Liang He <windhl@xxxxxxx>
Link: https://lore.kernel.org/r/20220628143155.170550-1-windhl@xxxxxxx
Signed-off-by: Stephen Boyd <sboyd@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/clk/clk-oxnas.c b/drivers/clk/clk-oxnas.c
index 78d5ea669fea..2fe36f579ac5 100644
--- a/drivers/clk/clk-oxnas.c
+++ b/drivers/clk/clk-oxnas.c
@@ -207,7 +207,7 @@ static const struct of_device_id oxnas_stdclk_dt_ids[] = {
static int oxnas_stdclk_probe(struct platform_device *pdev)
{
- struct device_node *np = pdev->dev.of_node;
+ struct device_node *np = pdev->dev.of_node, *parent_np;
const struct oxnas_stdclk_data *data;
const struct of_device_id *id;
struct regmap *regmap;
@@ -219,7 +219,9 @@ static int oxnas_stdclk_probe(struct platform_device *pdev)
return -ENODEV;
data = id->data;
- regmap = syscon_node_to_regmap(of_get_parent(np));
+ parent_np = of_get_parent(np);
+ regmap = syscon_node_to_regmap(parent_np);
+ of_node_put(parent_np);
if (IS_ERR(regmap)) {
dev_err(&pdev->dev, "failed to have parent regmap\n");
return PTR_ERR(regmap);
