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-rw-r--r--fs/ubifs/auth.c21
1 files changed, 3 insertions, 18 deletions
diff --git a/fs/ubifs/auth.c b/fs/ubifs/auth.c
index 0d561ecb68..a4a0158f71 100644
--- a/fs/ubifs/auth.c
+++ b/fs/ubifs/auth.c
@@ -18,7 +18,7 @@
#include "ubifs.h"
/**
- * ubifs_node_calc_hash - calculate the hash of a UBIFS node
+ * __ubifs_node_calc_hash - calculate the hash of a UBIFS node
* @c: UBIFS file-system description object
* @node: the node to calculate a hash for
* @hash: the returned hash
@@ -507,28 +507,13 @@ out:
*/
int ubifs_hmac_wkm(struct ubifs_info *c, u8 *hmac)
{
- SHASH_DESC_ON_STACK(shash, c->hmac_tfm);
- int err;
const char well_known_message[] = "UBIFS";
if (!ubifs_authenticated(c))
return 0;
- shash->tfm = c->hmac_tfm;
-
- err = crypto_shash_init(shash);
- if (err)
- return err;
-
- err = crypto_shash_update(shash, well_known_message,
- sizeof(well_known_message) - 1);
- if (err < 0)
- return err;
-
- err = crypto_shash_final(shash, hmac);
- if (err)
- return err;
- return 0;
+ return crypto_shash_tfm_digest(c->hmac_tfm, well_known_message,
+ sizeof(well_known_message) - 1, hmac);
}
/*