[CRYPTO] users: Use crypto_hash interface instead of crypto_digest

This patch converts all remaining crypto_digest users to use the new
crypto_hash interface.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

1 files changed, 10 insertions, 8 deletions

diff --git a/security/seclvl.c b/security/seclvl.c
index c26dd7de0471..8f6291991fbc 100644
--- a/security/seclvl.c
+++ b/security/seclvl.c
@@ -16,6 +16,7 @@
  *      (at your option) any later version.
  */
 
+#include <linux/err.h>
 #include <linux/module.h>
 #include <linux/moduleparam.h>
 #include <linux/kernel.h>
@@ -197,26 +198,27 @@ static unsigned char hashedPassword[SHA1_DIGEST_SIZE];
 static int
 plaintext_to_sha1(unsigned char *hash, const char *plaintext, unsigned int len)
 {
-        struct crypto_tfm *tfm;
+        struct hash_desc desc;
         struct scatterlist sg;
+        int err;
+
         if (len > PAGE_SIZE) {
                 seclvl_printk(0, KERN_ERR, "Plaintext password too large (%d "
                               "characters).  Largest possible is %lu "
                               "bytes.\n", len, PAGE_SIZE);
                 return -EINVAL;
         }
-        tfm = crypto_alloc_tfm("sha1", CRYPTO_TFM_REQ_MAY_SLEEP);
-        if (tfm == NULL) {
+        desc.tfm = crypto_alloc_hash("sha1", 0, CRYPTO_ALG_ASYNC);
+        if (IS_ERR(desc.tfm)) {
                 seclvl_printk(0, KERN_ERR,
                               "Failed to load transform for SHA1\n");
                 return -EINVAL;
         }
         sg_init_one(&sg, (u8 *)plaintext, len);
-        crypto_digest_init(tfm);
-        crypto_digest_update(tfm, &sg, 1);
-        crypto_digest_final(tfm, hash);
-        crypto_free_tfm(tfm);
-        return 0;
+        desc.flags = CRYPTO_TFM_REQ_MAY_SLEEP;
+        err = crypto_hash_digest(&desc, &sg, len, hash);
+        crypto_free_hash(desc.tfm);
+        return err;
 }
 
 /**