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| author | Krzysztof Kozlowski <k.kozlowski@samsung.com> | 2014-02-11 11:03:34 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-05-06 07:55:28 -0700 |
| commit | e2736c784b16bb5b5e5a1e8e1dba7638f212a42b (patch) | |
| tree | edb787a38b89713fc2fbdf8c6e23b547d267f43d /samples | |
| parent | fe22769b213aade80d43b12b6f51c0ba7a9c0668 (diff) | |
| download | lwn-e2736c784b16bb5b5e5a1e8e1dba7638f212a42b.tar.gz lwn-e2736c784b16bb5b5e5a1e8e1dba7638f212a42b.zip | |
mfd: max8997: Fix possible NULL pointer dereference on i2c_new_dummy error
commit 97dc4ed3fa377ec91bb60ba98b70d645c2099384 upstream.
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.
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 'samples')
0 files changed, 0 insertions, 0 deletions