[PATCH] thermal/debugfs: Unlock on error path in thermal_debug_tz_trip_up()

[Dan Carpenter <dan.carpenter@xxxxxxxxxx>]

Add a missing mutex_unlock(&thermal_dbg->lock) to this error path.

Fixes: 4731c8f16a0e ("thermal/debugfs: Add thermal debugfs information for mitigation episodes")
Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
---
 drivers/thermal/thermal_debugfs.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/thermal/thermal_debugfs.c b/drivers/thermal/thermal_debugfs.c
index a3fa09235da1..a3f06029fc54 100644
--- a/drivers/thermal/thermal_debugfs.c
+++ b/drivers/thermal/thermal_debugfs.c
@@ -591,7 +591,7 @@ void thermal_debug_tz_trip_up(struct thermal_zone_device *tz,
 	if (!tz_dbg->nr_trips) {
 		tze = thermal_debugfs_tz_event_alloc(tz, now);
 		if (!tze)
-			return;
+			goto unlock;
 
 		list_add(&tze->node, &tz_dbg->tz_episodes);
 	}
@@ -619,6 +619,7 @@ void thermal_debug_tz_trip_up(struct thermal_zone_device *tz,
 		(temperature - tze->trip_stats[trip_id].avg) /
 		tze->trip_stats[trip_id].count;
 
+unlock:
 	mutex_unlock(&thermal_dbg->lock);
 }
 
-- 
2.43.0