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From: Steffen Klassert <steffen.klassert@secunet.com>
To: Dan Carpenter <error27@gmail.com>,
	Herbert Xu <herbert@gondor.apana.org.au>,
	"David S. Miller" <davem@davemloft.net>,
	linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.orgkern
Subject: Re: [patch] pcrypt: handle crypto_get_attr_type() errors
Date: Mon, 22 Mar 2010 13:23:42 +0000	[thread overview]
Message-ID: <20100322132342.GJ20508@secunet.com> (raw)
In-Reply-To: <20100321092847.GJ5331@bicker>

On Sun, Mar 21, 2010 at 12:28:47PM +0300, Dan Carpenter wrote:
> crypto_get_attr_type() can returns ERR_PTRs if there is a problem. 
> 
> Signed-off-by: Dan Carpenter <error27@gmail.com>
> 
> diff --git a/crypto/pcrypt.c b/crypto/pcrypt.c
> index 8020124..41bd80f 100644
> --- a/crypto/pcrypt.c
> +++ b/crypto/pcrypt.c
> @@ -322,6 +322,8 @@ static struct crypto_instance *pcrypt_alloc_aead(struct rtattr **tb)
>  	struct crypto_attr_type *algt;
>  
>  	algt = crypto_get_attr_type(tb);
> +	if (IS_ERR(algt))
> +		return ERR_CAST(algt);
>  
>  	alg = crypto_get_attr_alg(tb, algt->type,
>  				  (algt->mask & CRYPTO_ALG_TYPE_MASK));

I've just noticed that we are calling crypto_get_attr_type already in
pcrypt_alloc, so perhaps we could just pass the type and mask to
pcrypt_alloc_aead. Then we can remove this second call to
crypto_get_attr_type completely.

Steffen

WARNING: multiple messages have this Message-ID (diff)
From: Steffen Klassert <steffen.klassert@secunet.com>
To: Dan Carpenter <error27@gmail.com>,
	Herbert Xu <herbert@gondor.apana.org.au>,
	"David S. Miller" <davem@davemloft.net>,
	linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org, kern
Subject: Re: [patch] pcrypt: handle crypto_get_attr_type() errors
Date: Mon, 22 Mar 2010 14:23:42 +0100	[thread overview]
Message-ID: <20100322132342.GJ20508@secunet.com> (raw)
In-Reply-To: <20100321092847.GJ5331@bicker>

On Sun, Mar 21, 2010 at 12:28:47PM +0300, Dan Carpenter wrote:
> crypto_get_attr_type() can returns ERR_PTRs if there is a problem. 
> 
> Signed-off-by: Dan Carpenter <error27@gmail.com>
> 
> diff --git a/crypto/pcrypt.c b/crypto/pcrypt.c
> index 8020124..41bd80f 100644
> --- a/crypto/pcrypt.c
> +++ b/crypto/pcrypt.c
> @@ -322,6 +322,8 @@ static struct crypto_instance *pcrypt_alloc_aead(struct rtattr **tb)
>  	struct crypto_attr_type *algt;
>  
>  	algt = crypto_get_attr_type(tb);
> +	if (IS_ERR(algt))
> +		return ERR_CAST(algt);
>  
>  	alg = crypto_get_attr_alg(tb, algt->type,
>  				  (algt->mask & CRYPTO_ALG_TYPE_MASK));

I've just noticed that we are calling crypto_get_attr_type already in
pcrypt_alloc, so perhaps we could just pass the type and mask to
pcrypt_alloc_aead. Then we can remove this second call to
crypto_get_attr_type completely.

Steffen

WARNING: multiple messages have this Message-ID (diff)
From: Steffen Klassert <steffen.klassert@secunet.com>
To: Dan Carpenter <error27@gmail.com>,
	Herbert Xu <herbert@gondor.apana.org.au>,
	"David S. Miller" <davem@davemloft.net>,
	linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org,
	kernel-janitors@vger.kernel.org
Subject: Re: [patch] pcrypt: handle crypto_get_attr_type() errors
Date: Mon, 22 Mar 2010 14:23:42 +0100	[thread overview]
Message-ID: <20100322132342.GJ20508@secunet.com> (raw)
In-Reply-To: <20100321092847.GJ5331@bicker>

On Sun, Mar 21, 2010 at 12:28:47PM +0300, Dan Carpenter wrote:
> crypto_get_attr_type() can returns ERR_PTRs if there is a problem. 
> 
> Signed-off-by: Dan Carpenter <error27@gmail.com>
> 
> diff --git a/crypto/pcrypt.c b/crypto/pcrypt.c
> index 8020124..41bd80f 100644
> --- a/crypto/pcrypt.c
> +++ b/crypto/pcrypt.c
> @@ -322,6 +322,8 @@ static struct crypto_instance *pcrypt_alloc_aead(struct rtattr **tb)
>  	struct crypto_attr_type *algt;
>  
>  	algt = crypto_get_attr_type(tb);
> +	if (IS_ERR(algt))
> +		return ERR_CAST(algt);
>  
>  	alg = crypto_get_attr_alg(tb, algt->type,
>  				  (algt->mask & CRYPTO_ALG_TYPE_MASK));

I've just noticed that we are calling crypto_get_attr_type already in
pcrypt_alloc, so perhaps we could just pass the type and mask to
pcrypt_alloc_aead. Then we can remove this second call to
crypto_get_attr_type completely.

Steffen

  reply	other threads:[~2010-03-22 13:23 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-03-21  9:28 [patch] pcrypt: handle crypto_get_attr_type() errors Dan Carpenter
2010-03-21  9:28 ` Dan Carpenter
2010-03-22 13:23 ` Steffen Klassert [this message]
2010-03-22 13:23   ` Steffen Klassert
2010-03-22 13:23   ` Steffen Klassert
2010-03-22 13:48   ` Dan Carpenter
2010-03-22 13:48     ` Dan Carpenter
2010-03-22 13:53   ` [patch v2] " Dan Carpenter
2010-03-22 13:53     ` Dan Carpenter
2010-03-22 14:53     ` Steffen Klassert
2010-03-22 14:53       ` Steffen Klassert
2010-03-22 14:53       ` Steffen Klassert
2010-03-22 15:28       ` [patch v3] " Dan Carpenter
2010-03-22 15:28         ` Dan Carpenter
2010-03-22 15:28         ` Dan Carpenter
2010-03-23 10:34         ` Steffen Klassert
2010-03-23 10:34           ` Steffen Klassert
2010-03-23 10:34           ` Steffen Klassert
2010-03-24 13:35           ` Herbert Xu
2010-03-24 13:35             ` Herbert Xu

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