From 1d6aa08c54cd0e005210ab8e3b1e92ede70f8a4f Mon Sep 17 00:00:00 2001
From: Liang He <windhl@126.com>
Date: Tue, 28 Jun 2022 22:31:55 +0800
Subject: [PATCH] clk: oxnas: Hold reference returned by of_get_parent()
Git-commit: 1d6aa08c54cd0e005210ab8e3b1e92ede70f8a4f
Patch-mainline: v6.1-rc1
References: git-fixes
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@126.com>
Link: https://lore.kernel.org/r/20220628143155.170550-1-windhl@126.com
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Acked-by: Takashi Iwai <tiwai@suse.de>
---
drivers/clk/clk-oxnas.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
--- a/drivers/clk/clk-oxnas.c
+++ b/drivers/clk/clk-oxnas.c
@@ -207,7 +207,7 @@ static const struct of_device_id oxnas_s
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 pla
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);