Bluetooth: hci_uart: check the return value of recv()
Check the return value of hu->proto->recv() in hci_uart_tty_receive()
the recv() may return error, check it, not add this to statistics.
Signed-off-by: Jiejing Zhang <jiejing.zhang@freescale.com>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
diff --git a/drivers/bluetooth/hci_ath.c b/drivers/bluetooth/hci_ath.c
index bd34406..4093935 100644
--- a/drivers/bluetooth/hci_ath.c
+++ b/drivers/bluetooth/hci_ath.c
@@ -201,8 +201,13 @@
/* Recv data */
static int ath_recv(struct hci_uart *hu, void *data, int count)
{
- if (hci_recv_stream_fragment(hu->hdev, data, count) < 0)
+ int ret;
+
+ ret = hci_recv_stream_fragment(hu->hdev, data, count);
+ if (ret < 0) {
BT_ERR("Frame Reassembly Failed");
+ return ret;
+ }
return count;
}
diff --git a/drivers/bluetooth/hci_ldisc.c b/drivers/bluetooth/hci_ldisc.c
index 48ad2a7..320f718 100644
--- a/drivers/bluetooth/hci_ldisc.c
+++ b/drivers/bluetooth/hci_ldisc.c
@@ -359,6 +359,7 @@
*/
static void hci_uart_tty_receive(struct tty_struct *tty, const u8 *data, char *flags, int count)
{
+ int ret;
struct hci_uart *hu = (void *)tty->disc_data;
if (!hu || tty != hu->tty)
@@ -368,8 +369,9 @@
return;
spin_lock(&hu->rx_lock);
- hu->proto->recv(hu, (void *) data, count);
- hu->hdev->stat.byte_rx += count;
+ ret = hu->proto->recv(hu, (void *) data, count);
+ if (ret > 0)
+ hu->hdev->stat.byte_rx += count;
spin_unlock(&hu->rx_lock);
tty_unthrottle(tty);