Update Linux to v5.4.2

Change-Id: Idf6911045d9d382da2cfe01b1edff026404ac8fd
diff --git a/net/bluetooth/hci_sock.c b/net/bluetooth/hci_sock.c
index 1506e16..d32077b 100644
--- a/net/bluetooth/hci_sock.c
+++ b/net/bluetooth/hci_sock.c
@@ -831,8 +831,6 @@
 	if (!sk)
 		return 0;
 
-	hdev = hci_pi(sk)->hdev;
-
 	switch (hci_pi(sk)->channel) {
 	case HCI_CHANNEL_MONITOR:
 		atomic_dec(&monitor_promisc);
@@ -854,6 +852,7 @@
 
 	bt_sock_unlink(&hci_sk_list, sk);
 
+	hdev = hci_pi(sk)->hdev;
 	if (hdev) {
 		if (hci_pi(sk)->channel == HCI_CHANNEL_USER) {
 			/* When releasing a user channel exclusive access,
@@ -1383,9 +1382,9 @@
 
 	if (mask & HCI_CMSG_TSTAMP) {
 #ifdef CONFIG_COMPAT
-		struct compat_timeval ctv;
+		struct old_timeval32 ctv;
 #endif
-		struct timeval tv;
+		struct __kernel_old_timeval tv;
 		void *data;
 		int len;