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powerpc/powermac: fix OF node refcount

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Platform devices created with platform_device_alloc() call
platform_device_release() when the last reference to the device's
kobject is dropped. This function calls of_node_put() unconditionally.
This works fine for devices created with platform_device_register_full()
but users of the split approach (platform_device_alloc() +
platform_device_add()) must bump the reference of the of_node they
assign manually. Add the missing call to of_node_get().

Cc: stable@vger.kernel.org
Fixes: 81e5d8646f ("i2c/powermac: Register i2c devices from device-tree")
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@oss.qualcomm.com>
Link: https://patch.msgid.link/20260706-pdev-fwnode-ref-v3-1-1ff028e33779@oss.qualcomm.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Bartosz Golaszewski
2026-07-06 14:44:13 +02:00
committed by Greg Kroah-Hartman
parent 5dcef303b2
commit bd0abfe6b0
1 changed files with 1 additions and 1 deletions
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2
arch/powerpc/platforms/powermac/low_i2c.c
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@@ -1471,7 +1471,7 @@ static int __init pmac_i2c_create_platform_devices(void)
if (bus->platform_dev == NULL)
return -ENOMEM;
bus->platform_dev->dev.platform_data = bus;
bus->platform_dev->dev.of_node = bus->busnode;
bus->platform_dev->dev.of_node = of_node_get(bus->busnode);
platform_device_add(bus->platform_dev);
}