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Peter Hüwe 0aef44e84a 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: 366047515c "i2c: rework kernel config I2C_ACPI" or even da3c6647ee "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>		History 2014-09-25 16:08:15 +02:00
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algos	Merge branch 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux	2014-01-29 19:56:20 -08:00
busses	i2c: rk3x: fix divisor calculation for SCL frequency	2014-09-20 18:35:10 +02:00
muxes	Merge branch 'i2c/for-3.17' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux	2014-08-09 09:15:07 -07:00
i2c-boardinfo.c	i2c: Update the FSF address	2012-03-26 21:47:19 +02:00
i2c-core.c	i2c: acpi: Fix NULL Pointer dereference	2014-09-25 16:08:15 +02:00
i2c-core.h	i2c: Update the FSF address	2012-03-26 21:47:19 +02:00
i2c-dev.c	i2c: i2c-dev: Create 'name' attribute automatically	2013-09-30 06:02:31 +02:00
i2c-mux.c	i2c: mux: Inherit retry count and timeout from parent for muxed bus	2013-12-12 22:39:28 +01:00
i2c-smbus.c	Update Jean Delvare's e-mail address	2014-01-29 20:40:08 +01:00
i2c-stub.c	i2c: stub: Avoid an array overrun on I2C block transfers	2014-07-20 13:25:29 +02:00
Kconfig	i2c: rework kernel config I2C_ACPI	2014-08-19 10:19:39 -05:00
Makefile	i2c: move acpi code back into the core	2014-09-25 16:07:15 +02:00