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Date: Wed, 14 Mar 2018 14:46:29 +0100
From: Salvatore Mesoraca <s.mesoraca16@...il.com>
To: Stephan Mueller <smueller@...onox.de>
Cc: linux-kernel@...r.kernel.org, 
	Kernel Hardening <kernel-hardening@...ts.openwall.com>, linux-crypto@...r.kernel.org, 
	"David S. Miller" <davem@...emloft.net>, Herbert Xu <herbert@...dor.apana.org.au>, 
	Kees Cook <keescook@...omium.org>
Subject: Re: [PATCH] crypto: ctr: avoid VLA use

2018-03-14 14:31 GMT+01:00 Stephan Mueller <smueller@...onox.de>:
> Am Mittwoch, 14. März 2018, 14:17:30 CET schrieb Salvatore Mesoraca:
>
> Hi Salvatore,
>
>>       if (walk.nbytes) {
>> -             crypto_ctr_crypt_final(&walk, child);
>> -             err = blkcipher_walk_done(desc, &walk, 0);
>> +             err = crypto_ctr_crypt_final(&walk, child);
>> +             err = blkcipher_walk_done(desc, &walk, err);
>
> I guess you either want to handle the error from crypto_ctr_crypt_final or do
> an err |= blkcipher_walk_done.

I think that blkcipher_walk_done handles and returns the error for me.
Am I wrong?

Best regards,

Salvatore

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