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| author | Yang Yingliang <yangyingliang@huawei.com> | 2022-07-12 21:55:04 +0800 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2022-07-13 13:49:02 +0100 |
| commit | 43cc5a0afe4184a7fafe1eba32b5a11bb69c9ce0 (patch) | |
| tree | 2b8b11523c75916c3149759489b24352b2c33c30 /tools/perf/scripts/python/sched-migration.py | |
| parent | cdb0cc9379f1b4fa5ea3e0492bacf8008f3f4e5a (diff) | |
spi: Fix simplification of devm_spi_register_controller
This reverts commit 59ebbe40fb51 ("spi: simplify
devm_spi_register_controller").
If devm_add_action() fails in devm_add_action_or_reset(),
devm_spi_unregister() will be called, it decreases the
refcount of 'ctlr->dev' to 0, then it will cause uaf in
the drivers that calling spi_put_controller() in error path.
Fixes: 59ebbe40fb51 ("spi: simplify devm_spi_register_controller")
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20220712135504.1055688-1-yangyingliang@huawei.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'tools/perf/scripts/python/sched-migration.py')
0 files changed, 0 insertions, 0 deletions