crypto: hash - Fix async import on shash algorithm

The function shash_async_import did not initialise the descriptor correctly prior to calling the underlying shash import function. This patch adds the required initialisation. Reported-by: Miloslav Trmac <[email protected]> Signed-off-by: Herbert Xu <[email protected]>
ambv · Nov 4, 2010 · 90246e7 · 90246e7
1 parent 8128057
commit 90246e7
Showing 1 changed file with 7 additions and 1 deletion.
diff --git a/crypto/shash.c b/crypto/shash.c
@@ -310,7 +310,13 @@ static int shash_async_export(struct ahash_request *req, void *out)
 
 static int shash_async_import(struct ahash_request *req, const void *in)
 {
-	return crypto_shash_import(ahash_request_ctx(req), in);
+	struct crypto_shash **ctx = crypto_ahash_ctx(crypto_ahash_reqtfm(req));
+	struct shash_desc *desc = ahash_request_ctx(req);
+
+	desc->tfm = *ctx;
+	desc->flags = req->base.flags;
+
+	return crypto_shash_import(desc, in);
 }
 
 static void crypto_exit_shash_ops_async(struct crypto_tfm *tfm)