diff options
| author | Rob Herring <robh@kernel.org> | 2023-08-18 15:40:59 -0500 |
|---|---|---|
| committer | Rob Herring <robh@kernel.org> | 2023-08-21 17:09:57 -0500 |
| commit | 420f0de965a80b7060d23d2c23cddaed4e4ad2eb (patch) | |
| tree | 65b458154bff425907f822c59c39a35a4ca822ac /drivers/of/base.c | |
| parent | 27a02f265e25a6d6136d07d0187fd02fe1691fd7 (diff) | |
| download | linux-420f0de965a80b7060d23d2c23cddaed4e4ad2eb.tar.gz linux-420f0de965a80b7060d23d2c23cddaed4e4ad2eb.tar.bz2 linux-420f0de965a80b7060d23d2c23cddaed4e4ad2eb.zip | |
of: dynamic: Fix race in getting old property when updating property
__of_update_property() returns the existing property if there is one, but
that value is never added to the changeset. Updates work because the
existing property was also retrieved before in of_changeset_action(),
but that is racy as of_changeset_action() doesn't hold any locks. The
property could be changed before the changeset is applied.
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Tested-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/20230801-dt-changeset-fixes-v3-4-5f0410e007dd@kernel.org
Signed-off-by: Rob Herring <robh@kernel.org>
Diffstat (limited to 'drivers/of/base.c')
0 files changed, 0 insertions, 0 deletions