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 6c4f91c..7e8147d 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;
 }