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authorZhang Rui <rui.zhang@intel.com>2023-03-29 17:00:55 +0800
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2023-03-29 18:07:14 +0200
commit4eb7c2f3a3d7cd6c50f391ac555b50c3fc5b3799 (patch)
tree6601a3d1f71b734fd3629fdce28dc7ec8f0cce27 /drivers/thermal
parent85b52122e5426e15602c0b979012e50d7271ea1a (diff)
thermal: thermal_hwmon: Fix a kernel NULL pointer dereference
When the hwmon device node of a thermal zone device is not found, using hwmon->device causes a kernel NULL pointer dereference. Fixes: dec07d399cc8 ("thermal: Don't use 'device' internal thermal zone structure field") Reported-by: Preble Adam C <adam.c.preble@intel.com> Signed-off-by: Zhang Rui <rui.zhang@intel.com> Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'drivers/thermal')
-rw-r--r--drivers/thermal/thermal_hwmon.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/thermal/thermal_hwmon.c b/drivers/thermal/thermal_hwmon.c
index c59db17dddd6..261743f461be 100644
--- a/drivers/thermal/thermal_hwmon.c
+++ b/drivers/thermal/thermal_hwmon.c
@@ -229,7 +229,7 @@ void thermal_remove_hwmon_sysfs(struct thermal_zone_device *tz)
hwmon = thermal_hwmon_lookup_by_type(tz);
if (unlikely(!hwmon)) {
/* Should never happen... */
- dev_dbg(hwmon->device, "hwmon device lookup failed!\n");
+ dev_dbg(&tz->device, "hwmon device lookup failed!\n");
return;
}