| Message ID | 20221003132943.1383065-1-daniel.lezcano@linaro.org |
|---|---|
| State | New |
| Headers | show |
| Series | thermal/drivers/exynos: Fix NULL pointer dereference when getting the critical temp | expand |
On 03/10/2022 15:29, Daniel Lezcano wrote: > 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: 13bea86623b ("thermal/of: Remove of_thermal_get_crit_temp(") > Reported-by: Marek Szyprowski <m.szyprowski@samsung.com> > Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Looks good. Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Best regards, Krzysztof
On 03.10.2022 15:29, Daniel Lezcano wrote: > 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: 13bea86623b ("thermal/of: Remove of_thermal_get_crit_temp(") > Reported-by: Marek Szyprowski <m.szyprowski@samsung.com> > Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Tested-by: Marek Szyprowski <m.szyprowski@samsung.com> > --- > drivers/thermal/samsung/exynos_tmu.c | 5 ++--- > 1 file 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; Best regards
Hi Daniel, On 03.10.2022 15:29, Daniel Lezcano wrote: > 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: 13bea86623b ("thermal/of: Remove of_thermal_get_crit_temp(") > Reported-by: Marek Szyprowski <m.szyprowski@samsung.com> > Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> This patch has been dropped from -next, is there are reason for that? > --- > drivers/thermal/samsung/exynos_tmu.c | 5 ++--- > 1 file 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; Best regards
On 17/10/2022 15:48, Marek Szyprowski wrote: > Hi Daniel, > > On 03.10.2022 15:29, Daniel Lezcano wrote: >> 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: 13bea86623b ("thermal/of: Remove of_thermal_get_crit_temp(") >> Reported-by: Marek Szyprowski <m.szyprowski@samsung.com> >> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> > > This patch has been dropped from -next, is there are reason for that? No, my mistake. I dropped it accidentally when I rebased the branch. Thanks for pointing it out.
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;
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: 13bea86623b ("thermal/of: Remove of_thermal_get_crit_temp(") Reported-by: Marek Szyprowski <m.szyprowski@samsung.com> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> --- drivers/thermal/samsung/exynos_tmu.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-)