diff --git a/drivers/bluetooth/hci_ath.c b/drivers/bluetooth/hci_ath.c
index 5ab258b..b941dd5 100644
--- a/drivers/bluetooth/hci_ath.c
+++ b/drivers/bluetooth/hci_ath.c
@@ -217,7 +217,7 @@
 	.flush = ath_flush,
 };
 
-int ath_init(void)
+int __init ath_init(void)
 {
 	int err = hci_uart_register_proto(&athp);
 
@@ -229,7 +229,7 @@
 	return err;
 }
 
-int ath_deinit(void)
+int __exit ath_deinit(void)
 {
 	return hci_uart_unregister_proto(&athp);
 }
diff --git a/drivers/bluetooth/hci_bcsp.c b/drivers/bluetooth/hci_bcsp.c
index 42d69d4..9c5b2dc 100644
--- a/drivers/bluetooth/hci_bcsp.c
+++ b/drivers/bluetooth/hci_bcsp.c
@@ -739,7 +739,7 @@
 	.flush		= bcsp_flush
 };
 
-int bcsp_init(void)
+int __init bcsp_init(void)
 {
 	int err = hci_uart_register_proto(&bcsp);
 
@@ -751,7 +751,7 @@
 	return err;
 }
 
-int bcsp_deinit(void)
+int __exit bcsp_deinit(void)
 {
 	return hci_uart_unregister_proto(&bcsp);
 }
diff --git a/drivers/bluetooth/hci_h4.c b/drivers/bluetooth/hci_h4.c
index b2cf50e..7b8ad93 100644
--- a/drivers/bluetooth/hci_h4.c
+++ b/drivers/bluetooth/hci_h4.c
@@ -173,7 +173,7 @@
 	.flush		= h4_flush,
 };
 
-int h4_init(void)
+int __init h4_init(void)
 {
 	int err = hci_uart_register_proto(&h4p);
 
@@ -185,7 +185,7 @@
 	return err;
 }
 
-int h4_deinit(void)
+int __exit h4_deinit(void)
 {
 	return hci_uart_unregister_proto(&h4p);
 }
diff --git a/drivers/bluetooth/hci_ll.c b/drivers/bluetooth/hci_ll.c
index 5744aba..38595e7 100644
--- a/drivers/bluetooth/hci_ll.c
+++ b/drivers/bluetooth/hci_ll.c
@@ -517,7 +517,7 @@
 	.flush		= ll_flush,
 };
 
-int ll_init(void)
+int __init ll_init(void)
 {
 	int err = hci_uart_register_proto(&llp);
 
@@ -529,7 +529,7 @@
 	return err;
 }
 
-int ll_deinit(void)
+int __exit ll_deinit(void)
 {
 	return hci_uart_unregister_proto(&llp);
 }