netdev - Re: [PATCH net 1/2] ravb: Fix dma_free_coherent() of desc_bat timing in ravb

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Message-ID: <79fa0c14-a203-1e0b-532d-846551ccaf36@omp.ru>
Date: Wed, 4 Oct 2023 21:46:41 +0300
From: Sergey Shtylyov <s.shtylyov@....ru>
To: Yoshihiro Shimoda <yoshihiro.shimoda.uh@...esas.com>,
	<davem@...emloft.net>, <edumazet@...gle.com>, <kuba@...nel.org>,
	<pabeni@...hat.com>
CC: <netdev@...r.kernel.org>, <linux-renesas-soc@...r.kernel.org>
Subject: Re: [PATCH net 1/2] ravb: Fix dma_free_coherent() of desc_bat timing
 in ravb_remove()

On 10/4/23 12:12 PM, Yoshihiro Shimoda wrote:

> The dma_free_coherent() in ravb_remove() should be called after

   How about:

In ravb_remove(), dma_free_coherent() should be called after unregister_netdev().

> unregister_netdev(). Otherwise, this controller is possible to use
> the freed buffer.
> 
> Fixes: c156633f1353 ("Renesas Ethernet AVB driver proper")
> Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@...esas.com>

Reviewed-by: Sergey Shtylyov <s.shtylyov@....ru>

[...]

MBR, Sergey