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authorDaniel Lezcano <daniel.lezcano@linaro.org>2022-10-03 15:29:43 +0200
committerDaniel Lezcano <daniel.lezcano@kernel.org>2023-01-06 14:14:48 +0100
commita1c306375b0638f37996bbda1e3a75c6f108a097 (patch)
tree41ce5cf7c9b832b74c45b3098e9ad178ea7723e8 /drivers/thermal/samsung
parentd3ecaf17b58607c240392e810a743fbb9e1e8262 (diff)
downloadlinux-next-a1c306375b0638f37996bbda1e3a75c6f108a097.tar.gz
thermal/drivers/exynos: Fix NULL pointer dereference when getting the critical temp
The driver is assuming the get_critical temperature exists as it is inherited by the thermal of ops. But this one has been removed in favor of the generic one. Use the generic thermal_zone_get_crit_temp() function instead Fixes: 13bea86623be ("thermal/of: Remove of_thermal_get_crit_temp(") Reported-by: Marek Szyprowski <m.szyprowski@samsung.com> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Tested-by: Marek Szyprowski <m.szyprowski@samsung.com> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Diffstat (limited to 'drivers/thermal/samsung')
-rw-r--r--drivers/thermal/samsung/exynos_tmu.c5
1 files changed, 2 insertions, 3 deletions
diff --git a/drivers/thermal/samsung/exynos_tmu.c b/drivers/thermal/samsung/exynos_tmu.c
index 5a1ffe2f3134..37465af59262 100644
--- a/drivers/thermal/samsung/exynos_tmu.c
+++ b/drivers/thermal/samsung/exynos_tmu.c
@@ -264,9 +264,8 @@ static int exynos_tmu_initialize(struct platform_device *pdev)
unsigned int status;
int ret = 0, temp;
- if (data->soc != SOC_ARCH_EXYNOS5433) /* FIXME */
- ret = tzd->ops->get_crit_temp(tzd, &temp);
- if (ret) {
+ ret = thermal_zone_get_crit_temp(tzd, &temp);
+ if (ret && data->soc != SOC_ARCH_EXYNOS5433) { /* FIXME */
dev_err(&pdev->dev,
"No CRITICAL trip point defined in device tree!\n");
goto out;