[PATCH v2 1/2] Revert "thermal/drivers/hwmon: Cleanup coding style a bit"

[Rafael J. Wysocki]

From: "Rafael J. Wysocki" <rafael.j.wysocki@xxxxxxxxx>

Revert commit 030a48b0f6ce ("thermal/drivers/hwmon: Cleanup coding style
a bit") that introduced a use-after-free into the error path of
thermal_add_hwmon_sysfs() by removing a valid check from it.

Link: https://lore.kernel.org/linux-hwmon/20260803183915.4ED7D1F000E9@xxxxxxxxxxxxxxx/
Cc: All applicable <stable@xxxxxxxxxxxxxxx>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@xxxxxxxxx>
---
 drivers/thermal/thermal_hwmon.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/thermal/thermal_hwmon.c b/drivers/thermal/thermal_hwmon.c
index 597c33c8a555..ec73d03a1e60 100644
--- a/drivers/thermal/thermal_hwmon.c
+++ b/drivers/thermal/thermal_hwmon.c
@@ -212,7 +212,8 @@ int thermal_add_hwmon_sysfs(struct thermal_zone_device *tz)
 	if (new_hwmon_device)
 		hwmon_device_unregister(hwmon->device);
  free_mem:
-	kfree(hwmon);
+	if (new_hwmon_device)
+		kfree(hwmon);
 
 	return result;
 }
-- 
2.51.0