From: Liang He windhl@126.com
[ 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@126.com Link: https://lore.kernel.org/r/20220628143155.170550-1-windhl@126.com Signed-off-by: Stephen Boyd sboyd@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/clk/clk-oxnas.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/drivers/clk/clk-oxnas.c b/drivers/clk/clk-oxnas.c index e51e0023fc6e..a92bf71f03ac 100644 --- a/drivers/clk/clk-oxnas.c +++ b/drivers/clk/clk-oxnas.c @@ -218,7 +218,7 @@ 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; @@ -230,7 +230,9 @@ 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);