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| author | Joe Hattori <joe@pf.is.s.u-tokyo.ac.jp> | 2024-12-15 12:01:59 +0900 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-01-17 13:36:25 +0100 |
| commit | 66e533f0b250a2f848602ba935c0bfc40a55a592 (patch) | |
| tree | fe5fe7f6429bfcf26a4da708af678c1955aefd29 /drivers/pmdomain | |
| parent | b1e6351c16b4703a2ba08c66cb928ae2108757e2 (diff) | |
| download | linux-66e533f0b250a2f848602ba935c0bfc40a55a592.tar.gz linux-66e533f0b250a2f848602ba935c0bfc40a55a592.tar.bz2 linux-66e533f0b250a2f848602ba935c0bfc40a55a592.zip | |
pmdomain: imx: gpcv2: fix an OF node reference leak in imx_gpcv2_probe()
[ Upstream commit 469c0682e03d67d8dc970ecaa70c2d753057c7c0 ]
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@pf.is.s.u-tokyo.ac.jp>
Cc: stable@vger.kernel.org
Message-ID: <20241215030159.1526624-1-joe@pf.is.s.u-tokyo.ac.jp>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/pmdomain')
| -rw-r--r-- | drivers/pmdomain/imx/gpcv2.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/pmdomain/imx/gpcv2.c b/drivers/pmdomain/imx/gpcv2.c index ec789bf92274..13fce2b134f6 100644 --- a/drivers/pmdomain/imx/gpcv2.c +++ b/drivers/pmdomain/imx/gpcv2.c @@ -1449,12 +1449,12 @@ static int imx_gpcv2_probe(struct platform_device *pdev) .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; |