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| author | Krzysztof Kozlowski <k.kozlowski@samsung.com> | 2014-02-11 11:03:34 +0100 |
|---|---|---|
| committer | Lee Jones <lee.jones@linaro.org> | 2014-03-19 09:58:08 +0100 |
| commit | 97dc4ed3fa377ec91bb60ba98b70d645c2099384 (patch) | |
| tree | 263230d4a648cca58e8e86c253e5642fbe99bb54 /mm/backing-dev.c | |
| parent | mfd: Delete non-required instances of include <linux/init.h> (diff) | |
| download | linux-97dc4ed3fa377ec91bb60ba98b70d645c2099384.tar.xz linux-97dc4ed3fa377ec91bb60ba98b70d645c2099384.zip | |
mfd: max8997: Fix possible NULL pointer dereference on i2c_new_dummy error
During probe the driver allocates dummy I2C devices for RTC, haptic and
MUIC with i2c_new_dummy() but it does not check the return value of this
calls.
In case of error (i2c_new_device(): memory allocation failure or I2C
address cannot be used) this function returns NULL which is later used
by i2c_unregister_device().
If i2c_new_dummy() fails for RTC, haptic or MUIC devices, fail also the
probe for main MFD driver.
Cc: stable@vger.kernel.org
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Diffstat (limited to 'mm/backing-dev.c')
0 files changed, 0 insertions, 0 deletions