diff options
| -rw-r--r-- | drivers/net/tun.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/drivers/net/tun.c b/drivers/net/tun.c index 807815fc9968..7cb105c103fe 100644 --- a/drivers/net/tun.c +++ b/drivers/net/tun.c @@ -1293,7 +1293,8 @@ static ssize_t tun_do_read(struct tun_struct *tun, struct tun_file *tfile, if (unlikely(!noblock)) add_wait_queue(&tfile->wq.wait, &wait); while (len) { - current->state = TASK_INTERRUPTIBLE; + if (unlikely(!noblock)) + current->state = TASK_INTERRUPTIBLE; /* Read frames from the queue */ if (!(skb = skb_dequeue(&tfile->socket.sk->sk_receive_queue))) { @@ -1320,9 +1321,10 @@ static ssize_t tun_do_read(struct tun_struct *tun, struct tun_file *tfile, break; } - current->state = TASK_RUNNING; - if (unlikely(!noblock)) + if (unlikely(!noblock)) { + current->state = TASK_RUNNING; remove_wait_queue(&tfile->wq.wait, &wait); + } return ret; } |