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| author | Krzysztof Kozlowski <k.kozlowski@samsung.com> | 2014-02-11 11:03:35 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-05-06 07:55:28 -0700 |
| commit | fe22769b213aade80d43b12b6f51c0ba7a9c0668 (patch) | |
| tree | 14eddd7ea35c3ee6dc63d2c0fe1ff7ef6f87eae2 /drivers/mfd/twl6040.c | |
| parent | 64ff251f373e35623e88333c1dc9ea118bbe857b (diff) | |
| download | linux-3.10-fe22769b213aade80d43b12b6f51c0ba7a9c0668.tar.gz linux-3.10-fe22769b213aade80d43b12b6f51c0ba7a9c0668.tar.bz2 linux-3.10-fe22769b213aade80d43b12b6f51c0ba7a9c0668.zip | |
mfd: max8998: Fix possible NULL pointer dereference on i2c_new_dummy error
commit ed26f87b9f71693a1d1ee85f5e6209601505080f upstream.
During probe the driver allocates dummy I2C device for RTC with i2c_new_dummy() but it does not check the return value of this call.
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 device, fail also the probe for
main MFD driver.
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/mfd/twl6040.c')
0 files changed, 0 insertions, 0 deletions