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Subject[PATCH 3.2 75/87] crypto: algif_skcipher - Add key check exception for cipher_null
3.2.77-rc1 review patch.  If anyone has any objections, please let me know.

------------------

From: Herbert Xu <herbert@gondor.apana.org.au>

commit 6e8d8ecf438792ecf7a3207488fb4eebc4edb040 upstream.

This patch adds an exception to the key check so that cipher_null
users may continue to use algif_skcipher without setting a key.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
[bwh: Backported to 3.2: use crypto_ablkcipher_has_setkey()]
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---
crypto/algif_skcipher.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

--- a/crypto/algif_skcipher.c
+++ b/crypto/algif_skcipher.c
@@ -760,7 +760,7 @@ static int skcipher_accept_parent(void *
{
struct skcipher_tfm *tfm = private;

- if (!tfm->has_key)
+ if (!tfm->has_key && crypto_ablkcipher_has_setkey(tfm->skcipher))
return -ENOKEY;

return skcipher_accept_parent_common(private, sk);
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