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authorMark Brown <broonie@linaro.org>2013-11-03 22:04:05 -0800
committerMark Brown <broonie@linaro.org>2013-11-03 22:04:05 -0800
commitca89bc248e2fac44d6374a48b8d38b068c7a1bdf (patch)
tree0c10af2a5f22a1ad0283023d403022ce6b84ebc4 /drivers/net/tun.c
parent9645083ca5ef365b7b750cf219bb20b61bb925f8 (diff)
parent7b5bfb82882b9b1c8423ce0ed6852ca3762d967a (diff)
Merge remote-tracking branch 'asoc/fix/ak4642' into asoc-linus
Diffstat (limited to 'drivers/net/tun.c')
-rw-r--r--drivers/net/tun.c8
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;
}