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Bluetooth: Use single return in hci_uart_tty_ioctl() call 

Remove multiple return statements in hci_uart_tty_ioctl() call and
added a single return statement.

This code re-organisation allows subsequent locking to be easily
added.

Signed-off-by: Vignesh Raman <Vignesh_Raman@mentor.com>
Signed-off-by: Dean Jenkins <Dean_Jenkins@mentor.com>
Signed-off-by: Rajeev Kumar <rajeev_kumar@mentor.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
This commit is contained in:
Vignesh Raman 2016-09-23 18:56:28 +01:00 committed by Marcel Holtmann
parent 37332ddc14
commit 056506944a
1 changed files with 15 additions and 13 deletions
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28
drivers/bluetooth/hci_ldisc.c
View File

@ -697,34 +697,36 @@ static int hci_uart_tty_ioctl(struct tty_struct *tty, struct file *file,
case HCIUARTSETPROTO:
if (!test_and_set_bit(HCI_UART_PROTO_SET, &hu->flags)) {
err = hci_uart_set_proto(hu, arg);
if (err) {
if (err)
clear_bit(HCI_UART_PROTO_SET, &hu->flags);
return err;
}
} else
return -EBUSY;
err = -EBUSY;
break;
case HCIUARTGETPROTO:
if (test_bit(HCI_UART_PROTO_SET, &hu->flags))
return hu->proto->id;
return -EUNATCH;
err = hu->proto->id;
else
err = -EUNATCH;
break;
case HCIUARTGETDEVICE:
if (test_bit(HCI_UART_REGISTERED, &hu->flags))
return hu->hdev->id;
return -EUNATCH;
err = hu->hdev->id;
else
err = -EUNATCH;
break;
case HCIUARTSETFLAGS:
if (test_bit(HCI_UART_PROTO_SET, &hu->flags))
return -EBUSY;
err = hci_uart_set_flags(hu, arg);
if (err)
return err;
err = -EBUSY;
else
err = hci_uart_set_flags(hu, arg);
break;
case HCIUARTGETFLAGS:
return hu->hdev_flags;
err = hu->hdev_flags;
break;
default:
err = n_tty_ioctl_helper(tty, file, cmd, arg);