Re: [PATCH net-next] tun: return proper error code from tun_do_read

From: David Miller
Date: Wed Dec 31 2014 - 14:15:43 EST

From: Alex Gartrell <agartrell@xxxxxx>
Date: Thu, 25 Dec 2014 23:22:49 -0800

> Instead of -1 with EAGAIN, read on a O_NONBLOCK tun fd will return 0. This
> fixes this by properly returning the error code from __skb_recv_datagram.
> Signed-off-by: Alex Gartrell <agartrell@xxxxxx>

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