linux-kernel - Re: [PATCH] crypto-jitterentropy: Delete unnecessary checks before the function call "kzfree"

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Message-ID: <20150624074819.GR28762@mwanda>
Date:	Wed, 24 Jun 2015 10:48:19 +0300
From:	Dan Carpenter <dan.carpenter@...cle.com>
To:	Stephan Mueller <smueller@...onox.de>
Cc:	SF Markus Elfring <elfring@...rs.sourceforge.net>,
	"David S. Miller" <davem@...emloft.net>,
	Herbert Xu <herbert@...dor.apana.org.au>,
	linux-crypto@...r.kernel.org, LKML <linux-kernel@...r.kernel.org>,
	kernel-janitors@...r.kernel.org,
	Julia Lawall <julia.lawall@...6.fr>
Subject: Re: [PATCH] crypto-jitterentropy: Delete unnecessary checks before
 the function call "kzfree"

The other NULL assignment isn't useful either.  Also If
"entropy_collector" is NULL then we would oops calling
kzfree(entropy_collector->mem);
       ^^^^^^^^^^^^^^^^^^^^^^
Dereference.

I don't understand the patch that you sent.  We shouldn't be introducing
jent_zalloc() or jent_zfree().  Why are you adding abstractions there?
Quite bad ones as well.

regards,
dan carpenter

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