From: Buday Csaba reset_gpio is claimed in mdiobus_register_device(), but it is not released in mdiobus_unregister_device(). It is instead only released when the whole MDIO bus is unregistered. When a device uses the reset_gpio property, it becomes impossible to unregister it and register it again, because the GPIO remains claimed. This patch resolves that issue. Fixes: bafbdd527d56 ("phylib: Add device reset GPIO support") # see notes Reviewed-by: Andrew Lunn Cc: Csókás Bence [ csokas.bence: Resolve rebase conflict and clarify msg ] Signed-off-by: Buday Csaba --- Notes: Changes in v2: * Rebase onto net-next (from 6.12) * Clarify msg after talking with Csaba in person * Collect Andrew's tag Link to v1: https://lore.kernel.org/all/20250709133222.48802-3-buday.csaba@prolan.hu/ Note to stable@: * for 6.12 and before, the above v1 patch can be used. drivers/net/phy/mdio_bus.c | 1 + drivers/net/phy/mdio_bus_provider.c | 3 --- 2 files changed, 1 insertion(+), 3 deletions(-) diff --git a/drivers/net/phy/mdio_bus.c b/drivers/net/phy/mdio_bus.c index fda2e27c1810..cad6ed3aa10b 100644 --- a/drivers/net/phy/mdio_bus.c +++ b/drivers/net/phy/mdio_bus.c @@ -91,6 +91,7 @@ int mdiobus_unregister_device(struct mdio_device *mdiodev) if (mdiodev->bus->mdio_map[mdiodev->addr] != mdiodev) return -EINVAL; + gpiod_put(mdiodev->reset_gpio); reset_control_put(mdiodev->reset_ctrl); mdiodev->bus->mdio_map[mdiodev->addr] = NULL; diff --git a/drivers/net/phy/mdio_bus_provider.c b/drivers/net/phy/mdio_bus_provider.c index 48dc4bf85125..f43973e73ea3 100644 --- a/drivers/net/phy/mdio_bus_provider.c +++ b/drivers/net/phy/mdio_bus_provider.c @@ -443,9 +443,6 @@ void mdiobus_unregister(struct mii_bus *bus) if (!mdiodev) continue; - if (mdiodev->reset_gpio) - gpiod_put(mdiodev->reset_gpio); - mdiodev->device_remove(mdiodev); mdiodev->device_free(mdiodev); } base-commit: d9104cec3e8fe4b458b74709853231385779001f -- 2.43.0