crypto: hash - Make setkey optional

[linux-2.6-omap-h63xx.git] / crypto / shash.c

diff --git a/crypto/shash.c b/crypto/shash.c
index 50d69a4e4b61a7a0dfa93b73f08ed42842d0288c..c9df367332ffd1f122b1d675bcb434b936848bc4 100644 (file)
--- a/crypto/shash.c
+++ b/crypto/shash.c
@@ -55,6 +55,9 @@ int crypto_shash_setkey(struct crypto_shash *tfm, const u8 *key,
        struct shash_alg *shash = crypto_shash_alg(tfm);
        unsigned long alignmask = crypto_shash_alignmask(tfm);
 
+       if (!shash->setkey)
+               return -ENOSYS;
+
        if ((unsigned long)key & alignmask)
                return shash_setkey_unaligned(tfm, key, keylen);