5 files changed, 50 insertions, 27 deletions

diff --git a/net/bluetooth/hci_conn.c b/net/bluetooth/hci_conn.c
index e9fef83449f..0b1e460fe44 100644
--- a/net/bluetooth/hci_conn.c
+++ b/net/bluetooth/hci_conn.c
@@ -155,6 +155,27 @@ void hci_setup_sync(struct hci_conn *conn, __u16 handle)
 	hci_send_cmd(hdev, HCI_OP_SETUP_SYNC_CONN, sizeof(cp), &cp);
 }
 
+/* Device _must_ be locked */
+void hci_sco_setup(struct hci_conn *conn, __u8 status)
+{
+	struct hci_conn *sco = conn->link;
+
+	BT_DBG("%p", conn);
+
+	if (!sco)
+		return;
+
+	if (!status) {
+		if (lmp_esco_capable(conn->hdev))
+			hci_setup_sync(sco, conn->handle);
+		else
+			hci_add_sco(sco, conn->handle);
+	} else {
+		hci_proto_connect_cfm(sco, status);
+		hci_conn_del(sco);
+	}
+}
+
 static void hci_conn_timeout(unsigned long arg)
 {
 	struct hci_conn *conn = (void *) arg;
@@ -385,10 +406,13 @@ struct hci_conn *hci_connect(struct hci_dev *hdev, int type, bdaddr_t *dst, __u8
 		acl->power_save = 1;
 		hci_conn_enter_active_mode(acl);
 
-		if (lmp_esco_capable(hdev))
-			hci_setup_sync(sco, acl->handle);
-		else
-			hci_add_sco(sco, acl->handle);
+		if (test_bit(HCI_CONN_MODE_CHANGE_PEND, &acl->pend)) {
+			/* defer SCO setup until mode change completed */
+			set_bit(HCI_CONN_SCO_SETUP_PEND, &acl->pend);
+			return sco;
+		}
+
+		hci_sco_setup(acl, 0x00);
 	}
 
 	return sco;
diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index 995c9f9b84d..8303f1c9ef5 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -1149,7 +1149,7 @@ int hci_recv_fragment(struct hci_dev *hdev, int type, void *data, int count)
 	if (type < HCI_ACLDATA_PKT || type > HCI_EVENT_PKT)
 		return -EILSEQ;
 
-	do {
+	while (count) {
 		rem = hci_reassembly(hdev, type, data, count,
 						type - 1, GFP_ATOMIC);
 		if (rem < 0)
@@ -1157,7 +1157,7 @@ int hci_recv_fragment(struct hci_dev *hdev, int type, void *data, int count)
 
 		data += (count - rem);
 		count = rem;
-	} while (count);
+	};
 
 	return rem;
 }
@@ -1170,7 +1170,7 @@ int hci_recv_stream_fragment(struct hci_dev *hdev, void *data, int count)
 	int type;
 	int rem = 0;
 
-	do {
+	while (count) {
 		struct sk_buff *skb = hdev->reassembly[STREAM_REASSEMBLY];
 
 		if (!skb) {
@@ -1192,7 +1192,7 @@ int hci_recv_stream_fragment(struct hci_dev *hdev, void *data, int count)
 
 		data += (count - rem);
 		count = rem;
-	} while (count);
+	};
 
 	return rem;
 }
diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c
index 2069c3b05fd..bfef5bae0b3 100644
--- a/net/bluetooth/hci_event.c
+++ b/net/bluetooth/hci_event.c
@@ -785,9 +785,13 @@ static void hci_cs_sniff_mode(struct hci_dev *hdev, __u8 status)
 	hci_dev_lock(hdev);
 
 	conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
-	if (conn)
+	if (conn) {
 		clear_bit(HCI_CONN_MODE_CHANGE_PEND, &conn->pend);
 
+		if (test_and_clear_bit(HCI_CONN_SCO_SETUP_PEND, &conn->pend))
+			hci_sco_setup(conn, status);
+	}
+
 	hci_dev_unlock(hdev);
 }
 
@@ -808,9 +812,13 @@ static void hci_cs_exit_sniff_mode(struct hci_dev *hdev, __u8 status)
 	hci_dev_lock(hdev);
 
 	conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
-	if (conn)
+	if (conn) {
 		clear_bit(HCI_CONN_MODE_CHANGE_PEND, &conn->pend);
 
+		if (test_and_clear_bit(HCI_CONN_SCO_SETUP_PEND, &conn->pend))
+			hci_sco_setup(conn, status);
+	}
+
 	hci_dev_unlock(hdev);
 }
 
@@ -915,20 +923,8 @@ static inline void hci_conn_complete_evt(struct hci_dev *hdev, struct sk_buff *s
 	} else
 		conn->state = BT_CLOSED;
 
-	if (conn->type == ACL_LINK) {
-		struct hci_conn *sco = conn->link;
-		if (sco) {
-			if (!ev->status) {
-				if (lmp_esco_capable(hdev))
-					hci_setup_sync(sco, conn->handle);
-				else
-					hci_add_sco(sco, conn->handle);
-			} else {
-				hci_proto_connect_cfm(sco, ev->status);
-				hci_conn_del(sco);
-			}
-		}
-	}
+	if (conn->type == ACL_LINK)
+		hci_sco_setup(conn, ev->status);
 
 	if (ev->status) {
 		hci_proto_connect_cfm(conn, ev->status);
@@ -1481,6 +1477,9 @@ static inline void hci_mode_change_evt(struct hci_dev *hdev, struct sk_buff *skb
 			else
 				conn->power_save = 0;
 		}
+
+		if (test_and_clear_bit(HCI_CONN_SCO_SETUP_PEND, &conn->pend))
+			hci_sco_setup(conn, ev->status);
 	}
 
 	hci_dev_unlock(hdev);
diff --git a/net/bluetooth/rfcomm/sock.c b/net/bluetooth/rfcomm/sock.c
index 43fbf6b4b4b..44a62327595 100644
--- a/net/bluetooth/rfcomm/sock.c
+++ b/net/bluetooth/rfcomm/sock.c
@@ -1152,7 +1152,7 @@ error:
 	return err;
 }
 
-void rfcomm_cleanup_sockets(void)
+void __exit rfcomm_cleanup_sockets(void)
 {
 	debugfs_remove(rfcomm_sock_debugfs);
 
diff --git a/net/bluetooth/rfcomm/tty.c b/net/bluetooth/rfcomm/tty.c
index 309b6c261b2..026205c18b7 100644
--- a/net/bluetooth/rfcomm/tty.c
+++ b/net/bluetooth/rfcomm/tty.c
@@ -1153,7 +1153,7 @@ static const struct tty_operations rfcomm_ops = {
 	.tiocmset		= rfcomm_tty_tiocmset,
 };
 
-int rfcomm_init_ttys(void)
+int __init rfcomm_init_ttys(void)
 {
 	rfcomm_tty_driver = alloc_tty_driver(RFCOMM_TTY_PORTS);
 	if (!rfcomm_tty_driver)
@@ -1183,7 +1183,7 @@ int rfcomm_init_ttys(void)
 	return 0;
 }
 
-void rfcomm_cleanup_ttys(void)
+void __exit rfcomm_cleanup_ttys(void)
 {
 	tty_unregister_driver(rfcomm_tty_driver);
 	put_tty_driver(rfcomm_tty_driver);