diff options
| author | Buday Csaba <buday.csaba@prolan.hu> | 2025-08-07 15:54:49 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-08-20 18:40:52 +0200 |
| commit | 7cdc6f8765d5407d011bb8e914a0367c9dfad866 (patch) | |
| tree | 3072b0d5046a866b1347c85444e4a40f19c27e37 | |
| parent | 0ddddff24b234ca4332796ec8b0703d1ea4a3f06 (diff) | |
net: mdiobus: release reset_gpio in mdiobus_unregister_device()
[ Upstream commit 8ea25274ebaf2f6be8be374633b2ed8348ec0e70 ]
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 <andrew@lunn.ch>
Cc: Csókás Bence <csokas.bence@prolan.hu>
[ csokas.bence: Resolve rebase conflict and clarify msg ]
Signed-off-by: Buday Csaba <buday.csaba@prolan.hu>
Link: https://patch.msgid.link/20250807135449.254254-2-csokas.bence@prolan.hu
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
| -rw-r--r-- | drivers/net/phy/mdio_bus.c | 1 | ||||
| -rw-r--r-- | drivers/net/phy/mdio_bus_provider.c | 3 |
2 files changed, 1 insertions, 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 65850e36284d..5401170f14e5 100644 --- a/drivers/net/phy/mdio_bus_provider.c +++ b/drivers/net/phy/mdio_bus_provider.c @@ -444,9 +444,6 @@ 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); } |