Commit 4531fa16 authored Feb 06, 2015 by Lukasz Majewski Committed by Zhang Rui Feb 20, 2015

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>

parent 3d883483

drivers/thermal/samsung/exynos_tmu.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -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);