From: Eric W. Biederman <ebiederm@xmission.com>
Date: Tue, 20 Jan 2009 10:59:05 +0000 (+0000)
Subject: tun: Use POLLERR not EBADF in tun_chr_poll
X-Git-Url: http://git.cdn.openwrt.org/?a=commitdiff_plain;h=eac9e902658dab1e097b8ef064e9e3d16c152cc9;p=openwrt%2Fstaging%2Fblogic.git

tun: Use POLLERR not EBADF in tun_chr_poll

EBADF is meaningless in the context of a poll mask so use POLLERR
instead.

Signed-off-by: Eric W. Biederman <ebiederm@aristanetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/drivers/net/tun.c b/drivers/net/tun.c
index 20ef14dc5603..8743de9d2572 100644
--- a/drivers/net/tun.c
+++ b/drivers/net/tun.c
@@ -382,7 +382,7 @@ static unsigned int tun_chr_poll(struct file *file, poll_table * wait)
 	unsigned int mask = POLLOUT | POLLWRNORM;
 
 	if (!tun)
-		return -EBADFD;
+		return POLLERR;
 
 	DBG(KERN_INFO "%s: tun_chr_poll\n", tun->dev->name);