Re: [PATCH 1/1 net-next] esp4: remove assignment in if condition

From: Joe Perches
Date: Tue Nov 04 2014 - 14:34:00 EST


On Tue, 2014-11-04 at 20:28 +0100, Fabian Frederick wrote:

trivia:

> diff --git a/net/ipv4/esp4.c b/net/ipv4/esp4.c
[]
> @@ -392,8 +392,11 @@ static int esp_input(struct xfrm_state *x, struct sk_buff *skb)
> if (elen <= 0)
> goto out;
>
> - if ((err = skb_cow_data(skb, 0, &trailer)) < 0)
> + err = skb_cow_data(skb, 0, &trailer);
> +
> + if (err < 0)
> goto out;

Generally it's better/more common to use

foo = bar();
if (!foo)
[error_handler...]

without the blank line between the set
and the test.

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