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Bluetooth: hci_uart: Fix zero len data packet reception issue

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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 <[email protected]>
Signed-off-by: Marcel Holtmann <[email protected]>
This commit is contained in:
Loic Poulain 2015-08-24 18:57:57 +02:00 • committed by Marcel Holtmann
commit e54991677e
1 changed files with 7 additions and 2 deletions
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9
drivers/bluetooth/hci_h4.c
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@ -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);