Re: [PATCH] fix inverted test in __skb_recv_datagram

[Rainer Weikusat]

As the kernel generally uses negated error numbers, *err needs to be
compared with -EAGAIN (d'oh).

Signed-off-by: Rainer Weikusat <rweikusat@xxxxxxxxxxxxxxxxxxxxxxx>
Fixes: ea3793ee29d3 ("core: enable more fine-grained datagram reception control")
---
diff --git a/net/core/datagram.c b/net/core/datagram.c
index 7daff66..fa9dc64 100644
--- a/net/core/datagram.c
+++ b/net/core/datagram.c
@@ -275,7 +275,7 @@ struct sk_buff *__skb_recv_datagram(struct sock *sk, unsigned int flags,
 		if (skb)
 			return skb;
 
-		if (*err != EAGAIN)
+		if (*err != -EAGAIN)
 			break;
 	} while (timeo &&
 		!__skb_wait_for_more_packets(sk, err, &timeo, last));
--
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