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| author | Billy Tsai | 2023-10-23 16:02:37 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman | 2023-11-28 17:07:02 +0000 |
| commit | e64d23dc65810be4e3395d72df0c398f60c991f9 (patch) | |
| tree | 6f26fc05b2b04381f1e310f96463d3d0d3531b6f /Documentation/i2c | |
| parent | 472bd4787406bef2e8b41ee4c74d960a06a49a48 (diff) | |
i3c: master: mipi-i3c-hci: Fix a kernel panic for accessing DAT_data.
[ Upstream commit b53e9758a31c683fc8615df930262192ed5f034b ]
The `i3c_master_bus_init` function may attach the I2C devices before the
I3C bus initialization. In this flow, the DAT `alloc_entry`` will be used
before the DAT `init`. Additionally, if the `i3c_master_bus_init` fails,
the DAT `cleanup` will execute before the device is detached, which will
execue DAT `free_entry` function. The above scenario can cause the driver
to use DAT_data when it is NULL.
Signed-off-by: Billy Tsai <billy_tsai@aspeedtech.com>
Link: https://lore.kernel.org/r/20231023080237.560936-1-billy_tsai@aspeedtech.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'Documentation/i2c')
0 files changed, 0 insertions, 0 deletions