1 files changed, 3 insertions, 0 deletions

diff --git a/drivers/bluetooth/hci_h4.c b/drivers/bluetooth/hci_h4.c
index c60623f206d4..8ae9f1ea2bb5 100644
--- a/drivers/bluetooth/hci_h4.c
+++ b/drivers/bluetooth/hci_h4.c
@@ -153,6 +153,9 @@ static int h4_recv(struct hci_uart *hu, void *data, int count)
 {
         int ret;
 
+        if (!test_bit(HCI_UART_REGISTERED, &hu->flags))
+                return -EUNATCH;
+
         ret = hci_recv_stream_fragment(hu->hdev, data, count);
         if (ret < 0) {
                 BT_ERR("Frame Reassembly Failed");