[PATCH] thermal: Fix NULL pointer dereference issue

[Mukesh Ojha]

Cooling stats variable inside thermal_cooling_device_stats_update()
can get NULL. We should add a NULL check on stat inside for sanity.

Signed-off-by: Mukesh Ojha <mojha@xxxxxxxxxxxxxx>
---
 drivers/thermal/thermal_sysfs.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/thermal/thermal_sysfs.c b/drivers/thermal/thermal_sysfs.c
index a6f371f..f52708f 100644
--- a/drivers/thermal/thermal_sysfs.c
+++ b/drivers/thermal/thermal_sysfs.c
@@ -754,6 +754,9 @@ void thermal_cooling_device_stats_update(struct thermal_cooling_device *cdev,
 {
 	struct cooling_dev_stats *stats = cdev->stats;
 
+	if (!stats)
+		return;
+
 	spin_lock(&stats->lock);
 
 	if (stats->state == new_state)
-- 
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