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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: Loic Poulain <loic.poulain@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
This commit is contained in:
Loic Poulain 2015-08-24 18:57:57 +02:00 committed by Marcel Holtmann
parent 4e1795de10
commit e54991677e
1 changed files with 7 additions and 2 deletions
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9
drivers/bluetooth/hci_h4.c
View File

@ -223,8 +223,7 @@ struct sk_buff *h4_recv_buf(struct hci_dev *hdev, struct sk_buff *skb,
switch ((&pkts[i])->lsize) { switch ((&pkts[i])->lsize) {
case 0: case 0:
/* No variable data length */ /* No variable data length */
(&pkts[i])->recv(hdev, skb); dlen = 0;
skb = NULL;
break; break;
case 1: case 1:
/* Single octet variable length */ /* 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); kfree_skb(skb);
return ERR_PTR(-EILSEQ); return ERR_PTR(-EILSEQ);
} }
if (!dlen) {
/* No more data, complete frame */
(&pkts[i])->recv(hdev, skb);
skb = NULL;
}
} else { } else {
/* Complete frame */ /* Complete frame */
(&pkts[i])->recv(hdev, skb); (&pkts[i])->recv(hdev, skb);