linux-kernel - Re: [PATCH] xsk: Free variable on error path

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Date:   Wed, 2 Sep 2020 20:36:15 +0200
From:   Daniel Borkmann <daniel@...earbox.net>
To:     Alex Dewar <alex.dewar90@...il.com>
Cc:     Björn Töpel <bjorn.topel@...el.com>,
        Magnus Karlsson <magnus.karlsson@...el.com>,
        Jonathan Lemon <jonathan.lemon@...il.com>,
        "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        Alexei Starovoitov <ast@...nel.org>,
        Jesper Dangaard Brouer <hawk@...nel.org>,
        John Fastabend <john.fastabend@...il.com>,
        netdev@...r.kernel.org, bpf@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] xsk: Free variable on error path

On 9/2/20 6:33 PM, Alex Dewar wrote:
> In xp_create_dma_map(), memory is allocated to dma_map->dma_pages, but
> then dma_map is erroneously compared to NULL, rather than the member.
> Fix this.
> 
> Addresses-Coverity: ("Dead code")
> Fixes: 921b68692abb ("xsk: Enable sharing of dma mappings")
> Signed-off-by: Alex Dewar <alex.dewar90@...il.com>

Thanks, already applied a fix that was sent earlier [0].

   [0] https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git/commit/?id=1d6fd78a213ee3874f46bdce083b7a41d208886d