Re: [PATCH] thermal/drivers/tegra: Fix crash when getting critical temp

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On 21/10/2022 11:49, Jon Hunter wrote:
Hi Rafael,

On 10/10/2022 16:03, Jon Hunter wrote:
Commit 13bea86623be ("thermal/of: Remove of_thermal_get_crit_temp()")
removed the function of_thermal_get_crit_temp() and this is causing a
NULL pointer deference crash when attempting to call the 'get_crit_temp'
function pointer because this function pointer is no longer initialised.
Fix this by replacing the call to the 'get_crit_temp' function pointer
with a call to the function thermal_zone_get_crit_temp() instead.

Fixes: 13bea86623be ("thermal/of: Remove of_thermal_get_crit_temp()")
Signed-off-by: Jon Hunter <jonathanh@xxxxxxxxxx>
---
  drivers/thermal/tegra/soctherm.c | 2 +-
  1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/thermal/tegra/soctherm.c b/drivers/thermal/tegra/soctherm.c
index d2e454902689..4203e74e2f79 100644
--- a/drivers/thermal/tegra/soctherm.c
+++ b/drivers/thermal/tegra/soctherm.c
@@ -742,7 +742,7 @@ static int tegra_soctherm_set_hwtrips(struct device *dev,
      /* Get thermtrips. If missing, try to get critical trips. */
      temperature = tsensor_group_thermtrip_get(ts, sg->id);
      if (min_low_temp == temperature)
-        if (tz->ops->get_crit_temp(tz, &temperature))
+        if (thermal_zone_get_crit_temp(tz, &temperature))
              temperature = max_high_temp;
      ret = thermtrip_program(dev, sg, temperature);


I'll take it


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