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Message-ID: <20150119144011.GA19086@mwanda>
Date: Mon, 19 Jan 2015 17:40:11 +0300
From: Dan Carpenter <dan.carpenter@...cle.com>
To: maheshb@...gle.com
Cc: netdev@...r.kernel.org
Subject: re: ipvlan: Initial check-in of the IPVLAN driver.
Hello Mahesh Bandewar,
The patch 2ad7bf363841: "ipvlan: Initial check-in of the IPVLAN
driver." from Nov 23, 2014, leads to the following static checker
warning:
drivers/net/ipvlan/ipvlan_core.c:380 ipvlan_process_v6_outbound()
warn: 'dst' isn't an ERR_PTR
drivers/net/ipvlan/ipvlan_core.c
378
379 dst = ip6_route_output(dev_net(dev), NULL, &fl6);
380 if (IS_ERR(dst))
381 goto err;
The ip6_route_output() function is not documented but it always returns
a valid pointer. I believe you are supposed to check something like:
if (dst->error) {
ret = dst->error;
goto error;
}
382
383 skb_dst_drop(skb);
384 skb_dst_set(skb, dst);
regards,
dan carpenter
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