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Commit e5499167 authored by Loic Poulain's avatar Loic Poulain Committed by Marcel Holtmann
Browse files

Bluetooth: hci_uart: Fix zero len data packet reception issue 



Packets with a variable length value equal to zero were not received.

Since no more data expected (and input buffer entirely consumed), we
need to complete/forward the packet immediately instead of waiting for
more data.

Signed-off-by: default avatarLoic Poulain <loic.poulain@intel.com>
Signed-off-by: default avatarMarcel Holtmann <marcel@holtmann.org>
parent 4e1795de

drivers/bluetooth/hci_h4.c

+7 −2
Original line number Diff line number Diff line
@@ -223,8 +223,7 @@ struct sk_buff *h4_recv_buf(struct hci_dev *hdev, struct sk_buff *skb, 
			switch ((&pkts[i])->lsize) {

			case 0:

				/* No variable data length */

				(&pkts[i])->recv(hdev, skb);

				skb = NULL;

				dlen = 0;

				break;

			case 1:

				/* Single octet variable length */
@@ -252,6 +251,12 @@ struct sk_buff *h4_recv_buf(struct hci_dev *hdev, struct sk_buff *skb, 
				kfree_skb(skb);

				return ERR_PTR(-EILSEQ);

			}



			if (!dlen) {

				/* No more data, complete frame */

				(&pkts[i])->recv(hdev, skb);

				skb = NULL;

			}

		} else {

			/* Complete frame */

			(&pkts[i])->recv(hdev, skb);