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| author | Peter Hüwe <PeterHuewe@gmx.de> | 2014-09-12 23:09:47 +0400 |
|---|---|---|
| committer | Wolfram Sang <wsa@the-dreams.de> | 2014-09-25 18:08:15 +0400 |
| commit | 0aef44e84ad16cd87a88df78773fd81ecca34f11 (patch) | |
| tree | c50a07ae7431e7cc42117f34afc070fb195dc488 /MAINTAINERS | |
| parent | 17f4a5c47f28de9ea59182f48d07f8c44ee5dcc9 (diff) | |
| download | linux-0aef44e84ad16cd87a88df78773fd81ecca34f11.tar.xz | |
i2c: acpi: Fix NULL Pointer dereference
If adapter->dev.parent == NULL there is a NULL pointer dereference in
acpi_i2c_install_space_handler and acpi_i2c_remove_space_handler.
This is present since introduction of this code:
366047515c6e "i2c: rework kernel config I2C_ACPI" or even
da3c6647ee08 "I2C/ACPI: Clean up I2C ACPI code and Add CONFIG_I2C_ACPI"
The adapter->dev.parent == NULL case is valid for the i2c_stub,
so loading i2c_stub with ACPI_I2C_OPREGION enabled results in an oops.
This is also valid at least for i2c_tiny_usb and i2c_robotfuzz_osif.
Fix by checking whether it is null before calling ACPI_HANDLE.
Signed-off-by: Peter Huewe <peterhuewe@gmx.de>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Diffstat (limited to 'MAINTAINERS')
0 files changed, 0 insertions, 0 deletions