From mboxrd@z Thu Jan  1 00:00:00 1970
From: Stephen Hemminger <stephen@networkplumber.org>
Subject: Re: [PATCH v1 1/6] net/af_xdp: introduce AF_XDP PMD
 driver
Date: Fri, 1 Mar 2019 10:31:25 -0800
Message-ID: <20190301103125.7f6f6b7e@shemminger-XPS-13-9360>
References: <20190301080947.91086-1-xiaolong.ye@intel.com>
 <20190301080947.91086-2-xiaolong.ye@intel.com>
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Cc: dev@dpdk.org, Qi Zhang <qi.z.zhang@intel.com>
To: Xiaolong Ye <xiaolong.ye@intel.com>
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On Fri,  1 Mar 2019 16:09:42 +0800
Xiaolong Ye <xiaolong.ye@intel.com> wrote:

> +	if (umem->buffer)
> +		free(umem->buffer);

Minor nit: you don't need to check for NULL free() already handles this.