diff --git a/mt7915/init.c b/mt7915/init.c
index 2da6ea91..04788db0 100644
--- a/mt7915/init.c
+++ b/mt7915/init.c
@@ -1297,6 +1297,7 @@ free_phy2:
 
 void mt7915_unregister_device(struct mt7915_dev *dev)
 {
+	cancel_work_sync(&dev->dump_work);
 	mt7915_unregister_ext_phy(dev);
 	mt7915_coredump_unregister(dev);
 	mt7915_unregister_thermal(&dev->phy);