1 files changed, 5 insertions, 28 deletions

diff --git a/kernel/drivers/bluetooth/btmrvl_main.c b/kernel/drivers/bluetooth/btmrvl_main.c
index de05deb44..6af917331 100644
--- a/kernel/drivers/bluetooth/btmrvl_main.c
+++ b/kernel/drivers/bluetooth/btmrvl_main.c
@@ -184,7 +184,7 @@ static int btmrvl_send_sync_cmd(struct btmrvl_private *priv, u16 opcode,
 	}
 
 	skb = bt_skb_alloc(HCI_COMMAND_HDR_SIZE + len, GFP_ATOMIC);
-	if (skb == NULL) {
+	if (!skb) {
 		BT_ERR("No free skb");
 		return -ENOMEM;
 	}
@@ -377,20 +377,6 @@ static int btmrvl_tx_pkt(struct btmrvl_private *priv, struct sk_buff *skb)
 		return -EINVAL;
 	}
 
-	if (skb_headroom(skb) < BTM_HEADER_LEN) {
-		struct sk_buff *tmp = skb;
-
-		skb = skb_realloc_headroom(skb, BTM_HEADER_LEN);
-		if (!skb) {
-			BT_ERR("Tx Error: realloc_headroom failed %d",
-				BTM_HEADER_LEN);
-			skb = tmp;
-			return -EINVAL;
-		}
-
-		kfree_skb(tmp);
-	}
-
 	skb_push(skb, BTM_HEADER_LEN);
 
 	/* header type: byte[3]
@@ -450,13 +436,6 @@ static int btmrvl_send_frame(struct hci_dev *hdev, struct sk_buff *skb)
 
 	BT_DBG("type=%d, len=%d", skb->pkt_type, skb->len);
 
-	if (!test_bit(HCI_RUNNING, &hdev->flags)) {
-		BT_ERR("Failed testing HCI_RUNING, flags=%lx", hdev->flags);
-		print_hex_dump_bytes("data: ", DUMP_PREFIX_OFFSET,
-							skb->data, skb->len);
-		return -EBUSY;
-	}
-
 	switch (bt_cb(skb)->pkt_type) {
 	case HCI_COMMAND_PKT:
 		hdev->stat.cmd_tx++;
@@ -491,9 +470,6 @@ static int btmrvl_close(struct hci_dev *hdev)
 {
 	struct btmrvl_private *priv = hci_get_drvdata(hdev);
 
-	if (!test_and_clear_bit(HCI_RUNNING, &hdev->flags))
-		return 0;
-
 	skb_queue_purge(&priv->adapter->tx_queue);
 
 	return 0;
@@ -501,8 +477,6 @@ static int btmrvl_close(struct hci_dev *hdev)
 
 static int btmrvl_open(struct hci_dev *hdev)
 {
-	set_bit(HCI_RUNNING, &hdev->flags);
-
 	return 0;
 }
 
@@ -542,14 +516,17 @@ static int btmrvl_check_device_tree(struct btmrvl_private *priv)
 		ret = of_property_read_u8_array(dt_node, "btmrvl,cal-data",
 						cal_data + BT_CAL_HDR_LEN,
 						BT_CAL_DATA_SIZE);
-		if (ret)
+		if (ret) {
+			of_node_put(dt_node);
 			return ret;
+		}
 
 		BT_DBG("Use cal data from device tree");
 		ret = btmrvl_download_cal_data(priv, cal_data,
 					       BT_CAL_DATA_SIZE);
 		if (ret) {
 			BT_ERR("Fail to download calibrate data");
+			of_node_put(dt_node);
 			return ret;
 		}
 	}