The flag CRYPTO_TFM_REQ_MAY_BACKLOG is optional and can be set from the
user to put requests into the backlog queue when the main cryptographic
queue is full. Before calling mv_cesa_tdma_chain we must check the value
of the return status to be sure that the current request has been
correctly queued or added to the backlog.
Fixes:
85030c5168f1 ("crypto: marvell - Add support for chaining...")
Signed-off-by: Romain Perier <romain.perier@free-electrons.com>
Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
struct mv_cesa_engine *engine = creq->engine;
spin_lock_bh(&engine->lock);
- if (mv_cesa_req_get_type(creq) == CESA_DMA_REQ)
- mv_cesa_tdma_chain(engine, creq);
-
ret = crypto_enqueue_request(&engine->queue, req);
+ if ((mv_cesa_req_get_type(creq) == CESA_DMA_REQ) &&
+ (ret == -EINPROGRESS ||
+ (ret == -EBUSY && req->flags & CRYPTO_TFM_REQ_MAY_BACKLOG)))
+ mv_cesa_tdma_chain(engine, creq);
spin_unlock_bh(&engine->lock);
if (ret != -EINPROGRESS)