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thermal: mtk: Allocate enough space for mtk_thermal. 

The mtk_thermal struct contains a 'struct mtk_thermal_bank banks[];',
but the allocation only allocates sizeof(struct mtk_thermal) bytes,
which cause out of bound access with the ->banks[] member. Change it to
a fixed size array instead.

Signed-off-by: Pi-Hsun Shih <pihsun@chromium.org>
Reviewed-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
This commit is contained in:
Pi-Hsun Shih 2019-01-09 13:57:24 +08:00 committed by Zhang Rui
parent e0fda7377d
commit fb4d83f293
1 changed files with 5 additions and 2 deletions
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7
drivers/thermal/mtk_thermal.c
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@ -199,6 +199,9 @@ enum {
#define MT7622_TS1 0
#define MT7622_NUM_CONTROLLER 1
/* The maximum number of banks */
#define MAX_NUM_ZONES 8
/* The calibration coefficient of sensor */
#define MT7622_CALIBRATION 165
@ -249,7 +252,7 @@ struct mtk_thermal_data {
const int num_controller;
const int *controller_offset;
bool need_switch_bank;
struct thermal_bank_cfg bank_data[];
struct thermal_bank_cfg bank_data[MAX_NUM_ZONES];
};
struct mtk_thermal {
@ -268,7 +271,7 @@ struct mtk_thermal {
s32 vts[MAX_NUM_VTS];
const struct mtk_thermal_data *conf;
struct mtk_thermal_bank banks[];
struct mtk_thermal_bank banks[MAX_NUM_ZONES];
};
/* MT8183 thermal sensor data */