crypto: caam - fixed handling of sg list

commit 42e95d1f10dcf8b18b1d7f52f7068985b3dc5b79 upstream.

when the source sg contains more than 1 fragment and
destination sg contains 1 fragment, the caam driver
mishandle the buffers to be sent to caam.

Fixes: f2147b88b2b1 ("crypto: caam - Convert GCM to new AEAD interface")
Cc: <stable@vger.kernel.org> # 4.2+
Signed-off-by: Pankaj Gupta <pankaj.gupta@nxp.com>
Signed-off-by: Arun Pathak <arun.pathak@nxp.com>
Reviewed-by: Horia Geanta <horia.geanta@nxp.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/crypto/caam/caamalg.c b/drivers/crypto/caam/caamalg.c
index ec40f991e6c63c4e6be98df8fc964312bc9afbf2..9bc54c3c2cb97d9b539cffe29b7ece48d07214f9 100644 (file)
--- a/drivers/crypto/caam/caamalg.c
+++ b/drivers/crypto/caam/caamalg.c
@@ -1005,6 +1005,7 @@ static void init_aead_job(struct aead_request *req,
        if (unlikely(req->src != req->dst)) {
                if (edesc->dst_nents == 1) {
                        dst_dma = sg_dma_address(req->dst);
+                       out_options = 0;
                } else {
                        dst_dma = edesc->sec4_sg_dma +
                                  sec4_sg_index *