6.12-stable review patch. If anyone has any objections, please let me know.
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From: Johan Hovold johan@kernel.org
[ Upstream commit 273cc3406c8d4e830ed45967c70d08d20ca1380e ]
Make sure to drop the OF node reference taken when initialising the control and port devices when the devices are later released.
Fixes: d36f0e9a0002 ("serial: core: restore of_node information in sysfs") Cc: Aidan Stewart astewart@tektelic.com Signed-off-by: Johan Hovold johan@kernel.org Link: https://lore.kernel.org/r/20250708085817.16070-1-johan@kernel.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org Stable-dep-of: 24ec03cc5512 ("serial: core: Restore sysfs fwnode information") Signed-off-by: Sasha Levin sashal@kernel.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/tty/serial/serial_base_bus.c | 3 +++ 1 file changed, 3 insertions(+)
--- a/drivers/tty/serial/serial_base_bus.c +++ b/drivers/tty/serial/serial_base_bus.c @@ -13,6 +13,7 @@ #include <linux/device.h> #include <linux/idr.h> #include <linux/module.h> +#include <linux/of.h> #include <linux/serial_core.h> #include <linux/slab.h> #include <linux/spinlock.h> @@ -93,6 +94,7 @@ static void serial_base_ctrl_release(str { struct serial_ctrl_device *ctrl_dev = to_serial_base_ctrl_device(dev);
+ of_node_put(dev->of_node); kfree(ctrl_dev); }
@@ -140,6 +142,7 @@ static void serial_base_port_release(str { struct serial_port_device *port_dev = to_serial_base_port_device(dev);
+ of_node_put(dev->of_node); kfree(port_dev); }