linux-kernel - Re: [PATCH] net/sonic: Fix some resource leaks in error handling paths

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Date:   Sat, 9 May 2020 09:28:38 +1000 (AEST)
From:   Finn Thain <fthain@...egraphics.com.au>
To:     Christophe JAILLET <christophe.jaillet@...adoo.fr>
cc:     davem@...emloft.net, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org, kernel-janitors@...r.kernel.org
Subject: Re: [PATCH] net/sonic: Fix some resource leaks in error handling
 paths


On Fri, 8 May 2020, Christophe JAILLET wrote:

> A call to 'dma_alloc_coherent()' is hidden in 
> 'sonic_alloc_descriptors()'.
> 
> This is correctly freed in the remove function, but not in the error 
> handling path of the probe function. Fix it and add the missing 
> 'dma_free_coherent()' call.
> 
> While at it, rename a label in order to be slightly more informative and 
> split some too long lines.
> 
> This patch is similar to commit 10e3cc180e64 ("net/sonic: Fix a resource 
> leak in an error handling path in 'jazz_sonic_probe()'") which was for 
> 'jazzsonic.c'.
> 
> Suggested-by: Finn Thain <fthain@...egraphics.com.au>
> Signed-off-by: Christophe JAILLET <christophe.jaillet@...adoo.fr>

Thanks.

Reviewed-by: Finn Thain <fthain@...egraphics.com.au>

> ---
> Only macsonic has been compile tested. I don't have the needed setup to
> compile xtsonic

I compile tested xtsonic.c. I didn't use an xtensa toolchain as there's 
probably no need: the new code already appears elsewhere in that file.