linux-kernel - Re: [PATCH 1/1] crypto: asymmetric

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Date:   Mon, 12 Dec 2016 16:10:18 +0000
From:   David Howells <dhowells@...hat.com>
To:     Pan Bian <bianpan201602@....com>
Cc:     dhowells@...hat.com, Herbert Xu <herbert@...dor.apana.org.au>,
        "David S. Miller" <davem@...emloft.net>, keyrings@...r.kernel.org,
        linux-crypto@...r.kernel.org, linux-kernel@...r.kernel.org,
        Pan Bian <bianpan2016@....com>
Subject: Re: [PATCH 1/1] crypto: asymmetric_keys: set error code on failure

Pan Bian <bianpan201602@....com> wrote:

>  	outlen = crypto_akcipher_maxsize(tfm);
>  	output = kmalloc(outlen, GFP_KERNEL);
> -	if (!output)
> +	if (!output) {
> +		ret = -ENOMEM;
>  		goto error_free_req;
> +	}

This is preferred:

+	ret = -ENOMEM;
 	outlen = crypto_akcipher_maxsize(tfm);
 	output = kmalloc(outlen, GFP_KERNEL);
 	if (!output)
 		goto error_free_req;

I'll alter your patch.

David