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path: root/drivers/hwmon/occ/common.c
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Diffstat (limited to 'drivers/hwmon/occ/common.c')
-rw-r--r--drivers/hwmon/occ/common.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/hwmon/occ/common.c b/drivers/hwmon/occ/common.c
index d78f4bebc718..ea070b91e5b9 100644
--- a/drivers/hwmon/occ/common.c
+++ b/drivers/hwmon/occ/common.c
@@ -1228,10 +1228,15 @@ EXPORT_SYMBOL_GPL(occ_setup);
 
 void occ_shutdown(struct occ *occ)
 {
+	mutex_lock(&occ->lock);
+
 	occ_shutdown_sysfs(occ);
 
 	if (occ->hwmon)
 		hwmon_device_unregister(occ->hwmon);
+	occ->hwmon = NULL;
+
+	mutex_unlock(&occ->lock);
 }
 EXPORT_SYMBOL_GPL(occ_shutdown);