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soc: samsung: exynos-pmu: fix device leak on regmap lookup

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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: 0b7c607502 ("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>
This commit is contained in:
Johan Hovold
2025-11-21 13:18:52 +01:00
committed by Krzysztof Kozlowski
parent 2224ea67c7
commit 990eb9a8eb
1 changed files with 2 additions and 0 deletions
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2
drivers/soc/samsung/exynos-pmu.c
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@@ -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);