6.12-stable review patch. If anyone has any objections, please let me know.
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From: Johan Hovold johan@kernel.org
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 --- drivers/soc/samsung/exynos-pmu.c | 2 ++ 1 file changed, 2 insertions(+)
--- a/drivers/soc/samsung/exynos-pmu.c +++ b/drivers/soc/samsung/exynos-pmu.c @@ -322,6 +322,8 @@ struct regmap *exynos_get_pmu_regmap_by_ 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);