Mark Bloch a913728688 devlink: Release nested relation on devlink free ...

[ Upstream commit 3522b21fd7 ]

devlink relation state is normally released from devl_unregister(), which
calls devlink_rel_put(). This misses devlink instances that get a nested
relation before registration and then fail probe before devl_register() is
reached.

That flow can happen for SFs. The child devlink gets linked to its
parent before registration, then a later probe error calls devlink_free()
directly. Since the instance was never registered, devl_unregister() is not
called and devlink->rel is leaked.

Release any pending relation from devlink_free() as well. The registered
path is unchanged because devl_unregister() already clears devlink->rel
before devlink_free() runs.

Fixes: c137743bce ("devlink: introduce object and nested devlink relationship infra")
Signed-off-by: Mark Bloch <mbloch@nvidia.com>
Reviewed-by: Jiri Pirko <jiri@nvidia.com>
Link: https://patch.msgid.link/20260528191411.3270532-1-mbloch@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

2026-06-19 13:42:19 +02:00

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core.c

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dev.c

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devl_internal.h

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dpipe.c

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health.c

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linecard.c

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Makefile

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netlink_gen.c

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netlink_gen.h

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netlink.c

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param.c

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port.c

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rate.c

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region.c

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resource.c

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sb.c

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trap.c

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