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authorLoic Poulain <loic.poulain@intel.com>2015-08-24 18:57:57 +0200
committerMarcel Holtmann <marcel@holtmann.org>2015-08-28 21:00:37 +0200
commite54991677e1c8060ba5642472cbd9a0954298d01 (patch)
treeaec456ce4793e2fe12471fcaf2cd531588a7ae15
parent4e1795de10903ae561872c54a72fa1bcf78f49cd (diff)
downloadop-kernel-dev-e54991677e1c8060ba5642472cbd9a0954298d01.zip
op-kernel-dev-e54991677e1c8060ba5642472cbd9a0954298d01.tar.gz
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>
-rw-r--r--drivers/bluetooth/hci_h4.c9
1 files changed, 7 insertions, 2 deletions
diff --git a/drivers/bluetooth/hci_h4.c b/drivers/bluetooth/hci_h4.c
index 57faddc..eec3f28 100644
--- a/drivers/bluetooth/hci_h4.c
+++ b/drivers/bluetooth/hci_h4.c
@@ -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);
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