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Bluetooth: hci_uart: check the return value of recv()

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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>
This commit is contained in:
Jiejing Zhang
2011-04-07 20:37:06 +08:00
committed by Gustavo F. Padovan
parent e1ba1f1546
commit 78b4a56c28
2 changed files with 10 additions and 3 deletions
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6
drivers/bluetooth/hci_ldisc.c
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@@ -359,6 +359,7 @@ static void hci_uart_tty_wakeup(struct tty_struct *tty)
*/
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 @@ static void hci_uart_tty_receive(struct tty_struct *tty, const u8 *data, char *f
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);