Bluetooth: Fix issue with uninitialized nsh.type in DTL-1 driver

The current build shows a warning with the DTL-1 driver:

  CC [M]  drivers/bluetooth/dtl1_cs.o
drivers/bluetooth/dtl1_cs.c: In function ‘dtl1_hci_send_frame’:
drivers/bluetooth/dtl1_cs.c:396: warning: ‘nsh.type’ may be used uninitialized in this function

Fix this by adding a proper error for unknown packet types.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>

1 files changed, 2 insertions, 0 deletions

diff --git a/drivers/bluetooth/dtl1_cs.c b/drivers/bluetooth/dtl1_cs.c
index 901bdd95655f..2cc7b3266eaf 100644
--- a/drivers/bluetooth/dtl1_cs.c
+++ b/drivers/bluetooth/dtl1_cs.c
@@ -415,6 +415,8 @@ static int dtl1_hci_send_frame(struct sk_buff *skb)
                 hdev->stat.sco_tx++;
                 nsh.type = 0x83;
                 break;
+        default:
+                return -EILSEQ;
         };
 
         nsh.zero = 0;