driver core: platform: amend the API contract for fwnode setters

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Calling platform_device_set_fwnode() (and by extension:
platform_device_set_of_node()) of platform_device_set_of_node_from_dev()
for a dynamically allocated platform device whose primary firmware node
is already assigned and is a software node leads to a resource leak as we
never perform the corresponding call to software_node_notify_remove(). As
there are currently no users for this special case - just disallow it and
warn loudly if it ever happens.

Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@oss.qualcomm.com>
Link: https://patch.msgid.link/20260716-swnode-remove-on-dev-unreg-v8-1-5c2b8cc38c28@oss.qualcomm.com
Signed-off-by: Danilo Krummrich <dakr@kernel.org>

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Bartosz Golaszewski 2026-07-16 14:31:36 +02:00 • committed by Danilo Krummrich

parent 4e63c0582e

commit e6054f410c

1 changed files with 18 additions and 3 deletions

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drivers/base/platform.c

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