bonding: process the err returned by dev_set_allmulti properly in bond_enslave

[pandora-kernel.git] / crypto / shash.c

diff --git a/crypto/shash.c b/crypto/shash.c
index 9100912..5441f4e 100644 (file)
--- a/crypto/shash.c
+++ b/crypto/shash.c
@@ -24,11 +24,12 @@
 
 static const struct crypto_type crypto_shash_type;
 
-static int shash_no_setkey(struct crypto_shash *tfm, const u8 *key,
-                          unsigned int keylen)
+int shash_no_setkey(struct crypto_shash *tfm, const u8 *key,
+                   unsigned int keylen)
 {
        return -ENOSYS;
 }
+EXPORT_SYMBOL_GPL(shash_no_setkey);
 
 static int shash_setkey_unaligned(struct crypto_shash *tfm, const u8 *key,
                                  unsigned int keylen)
@@ -56,11 +57,18 @@ 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);
+       int err;
 
        if ((unsigned long)key & alignmask)
-               return shash_setkey_unaligned(tfm, key, keylen);
+               err = shash_setkey_unaligned(tfm, key, keylen);
+       else
+               err = shash->setkey(tfm, key, keylen);
+
+       if (err)
+               return err;
 
-       return shash->setkey(tfm, key, keylen);
+       crypto_shash_clear_flags(tfm, CRYPTO_TFM_NEED_KEY);
+       return 0;
 }
 EXPORT_SYMBOL_GPL(crypto_shash_setkey);
 
@@ -178,6 +186,9 @@ int crypto_shash_digest(struct shash_desc *desc, const u8 *data,
        struct shash_alg *shash = crypto_shash_alg(tfm);
        unsigned long alignmask = crypto_shash_alignmask(tfm);
 
+       if (crypto_shash_get_flags(tfm) & CRYPTO_TFM_NEED_KEY)
+               return -ENOKEY;
+
        if (((unsigned long)data | (unsigned long)out) & alignmask)
                return shash_digest_unaligned(desc, data, len, out);
 
@@ -273,12 +284,14 @@ static int shash_async_finup(struct ahash_request *req)
 
 int shash_ahash_digest(struct ahash_request *req, struct shash_desc *desc)
 {
-       struct scatterlist *sg = req->src;
-       unsigned int offset = sg->offset;
        unsigned int nbytes = req->nbytes;
+       struct scatterlist *sg;
+       unsigned int offset;
        int err;
 
-       if (nbytes < min(sg->length, ((unsigned int)(PAGE_SIZE)) - offset)) {
+       if (nbytes &&
+           (sg = req->src, offset = sg->offset,
+            nbytes < min(sg->length, ((unsigned int)(PAGE_SIZE)) - offset))) {
                void *data;
 
                data = crypto_kmap(sg_page(sg), 0);
@@ -353,9 +366,11 @@ int crypto_init_shash_ops_async(struct crypto_tfm *tfm)
        crt->final = shash_async_final;
        crt->finup = shash_async_finup;
        crt->digest = shash_async_digest;
+       crt->setkey = shash_async_setkey;
+
+       crypto_ahash_set_flags(crt, crypto_shash_get_flags(shash) &
+                                   CRYPTO_TFM_NEED_KEY);
 
-       if (alg->setkey)
-               crt->setkey = shash_async_setkey;
        if (alg->export)
                crt->export = shash_async_export;
        if (alg->import)
@@ -514,8 +529,14 @@ static unsigned int crypto_shash_ctxsize(struct crypto_alg *alg, u32 type,
 static int crypto_shash_init_tfm(struct crypto_tfm *tfm)
 {
        struct crypto_shash *hash = __crypto_shash_cast(tfm);
+       struct shash_alg *alg = crypto_shash_alg(hash);
+
+       hash->descsize = alg->descsize;
+
+       if (crypto_shash_alg_has_setkey(alg) &&
+           !(alg->base.cra_flags & CRYPTO_ALG_OPTIONAL_KEY))
+               crypto_shash_set_flags(hash, CRYPTO_TFM_NEED_KEY);
 
-       hash->descsize = crypto_shash_alg(hash)->descsize;
        return 0;
 }
 
@@ -530,7 +551,8 @@ static int crypto_shash_report(struct sk_buff *skb, struct crypto_alg *alg)
        struct crypto_report_hash rhash;
        struct shash_alg *salg = __crypto_shash_alg(alg);
 
-       snprintf(rhash.type, CRYPTO_MAX_ALG_NAME, "%s", "shash");
+       strncpy(rhash.type, "shash", sizeof(rhash.type));
+
        rhash.blocksize = alg->cra_blocksize;
        rhash.digestsize = salg->digestsize;