crypto: ux500 - catch dma submission error

Test cookie return by dmaengine_submit() and return error if any.

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

diff --git a/drivers/crypto/ux500/cryp/cryp_core.c b/drivers/crypto/ux500/cryp/cryp_core.c
index a92a66b1ff46ed689a71d02dc4ab41481284ed1c..db94f89d8d11300b30000b1993173a4708738883 100644 (file)
--- a/drivers/crypto/ux500/cryp/cryp_core.c
+++ b/drivers/crypto/ux500/cryp/cryp_core.c
@@ -595,6 +595,12 @@ static int cryp_set_dma_transfer(struct cryp_ctx *ctx,
        }
 
        cookie = dmaengine_submit(desc);
+       if (dma_submit_error(cookie)) {
+               dev_dbg(ctx->device->dev, "[%s]: DMA submission failed\n",
+                       __func__);
+               return cookie;
+       }
+
        dma_async_issue_pending(channel);
 
        return 0;