Bluetooth: ath3k: Silence uninitialized variable warning

We could print an uninitialized value in the error message.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
diff --git a/drivers/bluetooth/ath3k.c b/drivers/bluetooth/ath3k.c
index 47ca4b3..641c2d1 100644
--- a/drivers/bluetooth/ath3k.c
+++ b/drivers/bluetooth/ath3k.c
@@ -206,7 +206,8 @@
 				const struct firmware *firmware)
 {
 	u8 *send_buf;
-	int err, pipe, len, size, sent = 0;
+	int len = 0;
+	int err, pipe, size, sent = 0;
 	int count = firmware->size;
 
 	BT_DBG("udev %p", udev);
@@ -302,7 +303,8 @@
 		const struct firmware *firmware)
 {
 	u8 *send_buf;
-	int err, pipe, len, size, count, sent = 0;
+	int len = 0;
+	int err, pipe, size, count, sent = 0;
 	int ret;
 
 	count = firmware->size;