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serial: core: Restore sysfs fwnode information

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The change that restores sysfs fwnode information does it only for OF cases.
Update the fix to cover all possible types of fwnodes.

Fixes: d36f0e9a00 ("serial: core: restore of_node information in sysfs")
Cc: stable <stable@kernel.org>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://patch.msgid.link/20251127163650.2942075-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Andy Shevchenko
2025-11-27 17:36:50 +01:00
committed by Greg Kroah-Hartman
parent 8f0b4cce44
commit 24ec03cc55
1 changed files with 6 additions and 4 deletions
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10
drivers/tty/serial/serial_base_bus.c
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@@ -13,7 +13,7 @@
#include <linux/device.h>
#include <linux/idr.h>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/property.h>
#include <linux/serial_core.h>
#include <linux/slab.h>
#include <linux/spinlock.h>
@@ -60,6 +60,7 @@ void serial_base_driver_unregister(struct device_driver *driver)
driver_unregister(driver);
}
/* On failure the caller must put device @dev with put_device() */
static int serial_base_device_init(struct uart_port *port,
struct device *dev,
struct device *parent_dev,
@@ -73,7 +74,8 @@ static int serial_base_device_init(struct uart_port *port,
dev->parent = parent_dev;
dev->bus = &serial_base_bus_type;
dev->release = release;
device_set_of_node_from_dev(dev, parent_dev);
device_set_node(dev, fwnode_handle_get(dev_fwnode(parent_dev)));
if (!serial_base_initialized) {
dev_dbg(port->dev, "uart_add_one_port() called before arch_initcall()?\n");
@@ -94,7 +96,7 @@ static void serial_base_ctrl_release(struct device *dev)
{
struct serial_ctrl_device *ctrl_dev = to_serial_base_ctrl_device(dev);
of_node_put(dev->of_node);
fwnode_handle_put(dev_fwnode(dev));
kfree(ctrl_dev);
}
@@ -142,7 +144,7 @@ static void serial_base_port_release(struct device *dev)
{
struct serial_port_device *port_dev = to_serial_base_port_device(dev);
of_node_put(dev->of_node);
fwnode_handle_put(dev_fwnode(dev));
kfree(port_dev);
}