6.12-stable review patch. If anyone has any objections, please let me know.
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From: Joe Hattori <joe@xxxxxxxxxxxxxxxxxxxxx>
commit 469c0682e03d67d8dc970ecaa70c2d753057c7c0 upstream.
imx_gpcv2_probe() leaks an OF node reference obtained by
of_get_child_by_name(). Fix it by declaring the device node with the
__free(device_node) cleanup construct.
This bug was found by an experimental static analysis tool that I am
developing.
Fixes: 03aa12629fc4 ("soc: imx: Add GPCv2 power gating driver")
Signed-off-by: Joe Hattori <joe@xxxxxxxxxxxxxxxxxxxxx>
Cc: stable@xxxxxxxxxxxxxxx
Message-ID: <20241215030159.1526624-1-joe@xxxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Ulf Hansson <ulf.hansson@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/pmdomain/imx/gpcv2.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
--- a/drivers/pmdomain/imx/gpcv2.c
+++ b/drivers/pmdomain/imx/gpcv2.c
@@ -1458,12 +1458,12 @@ static int imx_gpcv2_probe(struct platfo
.max_register = SZ_4K,
};
struct device *dev = &pdev->dev;
- struct device_node *pgc_np;
+ struct device_node *pgc_np __free(device_node) =
+ of_get_child_by_name(dev->of_node, "pgc");
struct regmap *regmap;
void __iomem *base;
int ret;
- pgc_np = of_get_child_by_name(dev->of_node, "pgc");
if (!pgc_np) {
dev_err(dev, "No power domains specified in DT\n");
return -EINVAL;
