crypto: caam - fix inconsistent assoc dma mapping direction

req->assoc is dma mapped BIDIRECTIONAL and unmapped TO_DEVICE.
Since it is read-only for the device, use TO_DEVICE both for mapping
and unmapping.

Cc: <stable@vger.kernel.org> # 3.9, 3.8
Signed-off-by: Horia Geanta <horia.geanta@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

diff --git a/drivers/crypto/caam/caamalg.c b/drivers/crypto/caam/caamalg.c
index 765fdf5ce579bafa81eb79e67f8341f424e22fe3..bf416a8391a77ec94dc3686d773e5afb7b437b3d 100644 (file)
--- a/drivers/crypto/caam/caamalg.c
+++ b/drivers/crypto/caam/caamalg.c
@@ -1154,7 +1154,7 @@ static struct aead_edesc *aead_edesc_alloc(struct aead_request *req,
                dst_nents = sg_count(req->dst, req->cryptlen, &dst_chained);
 
        sgc = dma_map_sg_chained(jrdev, req->assoc, assoc_nents ? : 1,
-                                DMA_BIDIRECTIONAL, assoc_chained);
+                                DMA_TO_DEVICE, assoc_chained);
        if (likely(req->src == req->dst)) {
                sgc = dma_map_sg_chained(jrdev, req->src, src_nents ? : 1,
                                         DMA_BIDIRECTIONAL, src_chained);
@@ -1336,7 +1336,7 @@ static struct aead_edesc *aead_giv_edesc_alloc(struct aead_givcrypt_request
                dst_nents = sg_count(req->dst, req->cryptlen, &dst_chained);
 
        sgc = dma_map_sg_chained(jrdev, req->assoc, assoc_nents ? : 1,
-                                DMA_BIDIRECTIONAL, assoc_chained);
+                                DMA_TO_DEVICE, assoc_chained);
        if (likely(req->src == req->dst)) {
                sgc = dma_map_sg_chained(jrdev, req->src, src_nents ? : 1,
                                         DMA_BIDIRECTIONAL, src_chained);