diff --git a/drivers/usb/gadget/f_accessory.c b/drivers/usb/gadget/f_accessory.c
index a401acdceb4d..0237f1e059b4 100644
--- a/drivers/usb/gadget/f_accessory.c
+++ b/drivers/usb/gadget/f_accessory.c
@@ -951,6 +951,10 @@ kill_all_hid_devices(struct acc_dev *dev)
 	struct list_head *entry, *temp;
 	unsigned long flags;
 
+	/* do nothing if usb accessory device doesn't exist */
+	if (!dev)
+		return;
+
 	spin_lock_irqsave(&dev->lock, flags);
 	list_for_each_safe(entry, temp, &dev->hid_list) {
 		hid = list_entry(entry, struct acc_hid_dev, list);