diff options
| author | Lukasz Majewski <l.majewski@samsung.com> | 2015-02-06 16:07:10 +0300 |
|---|---|---|
| committer | Zhang Rui <rui.zhang@intel.com> | 2015-02-20 16:57:02 +0300 |
| commit | 4531fa1684bb883ee01f1a182900b1e15d461b34 (patch) | |
| tree | 835ca67f5df7664fd87b6b25ef9f1feb73d1a1e6 /drivers/thermal/samsung | |
| parent | 3d883483dc0a7261d73d8b1857a7387a1dd99eee (diff) | |
| download | linux-4531fa1684bb883ee01f1a182900b1e15d461b34.tar.xz | |
thermal: exynos: fix: Check if data->tmu_read callback is present before read
The exynos_tmu_data() function should on entrance test not only for valid
data pointer, but also for data->tmu_read one.
It is important, since afterwards it is dereferenced to get temperature code.
Signed-off-by: Lukasz Majewski <l.majewski@samsung.com>
Tested-by: Abhilash Kesavan <a.kesavan@samsung.com>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Diffstat (limited to 'drivers/thermal/samsung')
| -rw-r--r-- | drivers/thermal/samsung/exynos_tmu.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/thermal/samsung/exynos_tmu.c b/drivers/thermal/samsung/exynos_tmu.c index fbeedc072cc2..933cd80a6bc5 100644 --- a/drivers/thermal/samsung/exynos_tmu.c +++ b/drivers/thermal/samsung/exynos_tmu.c @@ -716,7 +716,7 @@ static int exynos_get_temp(void *p, long *temp) { struct exynos_tmu_data *data = p; - if (!data) + if (!data || !data->tmu_read) return -EINVAL; mutex_lock(&data->lock); |