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| author | Johan Hovold <johan@kernel.org> | 2025-11-21 15:18:52 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2026-01-02 14:57:28 +0300 |
| commit | b2d6246ef36f4d3e254e02ca36cdfff5fa6d17fa (patch) | |
| tree | 9376a6a209f04853c7aa033c2d675e46489c9880 /drivers/soc | |
| parent | 3ce2b4aec8cd1460629802d9a6c1873abee6a04c (diff) | |
| download | linux-b2d6246ef36f4d3e254e02ca36cdfff5fa6d17fa.tar.xz | |
soc: samsung: exynos-pmu: fix device leak on regmap lookup
commit 990eb9a8eb4540ab90c7b34bb07b87ff13881cad upstream.
Make sure to drop the reference taken when looking up the PMU device and
its regmap.
Note that holding a reference to a device does not prevent its regmap
from going away so there is no point in keeping the reference.
Fixes: 0b7c6075022c ("soc: samsung: exynos-pmu: Add regmap support for SoCs that protect PMU regs")
Cc: stable@vger.kernel.org # 6.9
Cc: Peter Griffin <peter.griffin@linaro.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
Link: https://patch.msgid.link/20251121121852.16825-1-johan@kernel.org
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/soc')
| -rw-r--r-- | drivers/soc/samsung/exynos-pmu.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/soc/samsung/exynos-pmu.c b/drivers/soc/samsung/exynos-pmu.c index df5b1f299a26..f8fe1a5965ab 100644 --- a/drivers/soc/samsung/exynos-pmu.c +++ b/drivers/soc/samsung/exynos-pmu.c @@ -346,6 +346,8 @@ struct regmap *exynos_get_pmu_regmap_by_phandle(struct device_node *np, if (!dev) return ERR_PTR(-EPROBE_DEFER); + put_device(dev); + return syscon_node_to_regmap(pmu_np); } EXPORT_SYMBOL_GPL(exynos_get_pmu_regmap_by_phandle); |