crypto: sahara - remove unneeded mutex in the exported state

As pointed out by Herbert Xu we should not include the mutex in the
exported state, so let's just get rid of it.

Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

diff --git a/drivers/crypto/sahara.c b/drivers/crypto/sahara.c
index 6c4f91c5e6b352e13f630cb71f4f236cf5e75263..7e8147df6e0d0a95929712f66e6c1a886dafdac3 100644 (file)
--- a/drivers/crypto/sahara.c
+++ b/drivers/crypto/sahara.c
@@ -182,7 +182,6 @@ struct sahara_sha_reqctx {
        u8                      buf[SAHARA_MAX_SHA_BLOCK_SIZE];
        u8                      rembuf[SAHARA_MAX_SHA_BLOCK_SIZE];
        u8                      context[SHA256_DIGEST_SIZE + 4];
-       struct mutex            mutex;
        unsigned int            mode;
        unsigned int            digest_size;
        unsigned int            context_size;
@@ -1096,7 +1095,6 @@ static int sahara_sha_enqueue(struct ahash_request *req, int last)
        if (!req->nbytes && !last)
                return 0;
 
-       mutex_lock(&rctx->mutex);
        rctx->last = last;
 
        if (!rctx->active) {
@@ -1109,7 +1107,6 @@ static int sahara_sha_enqueue(struct ahash_request *req, int last)
        mutex_unlock(&dev->queue_mutex);
 
        wake_up_process(dev->kthread);
-       mutex_unlock(&rctx->mutex);
 
        return ret;
 }
@@ -1137,8 +1134,6 @@ static int sahara_sha_init(struct ahash_request *req)
        rctx->context_size = rctx->digest_size + 4;
        rctx->active = 0;
 
-       mutex_init(&rctx->mutex);
-
        return 0;
 }