crypto: img-hash - Fix dma_unmap_sg() nents value

The dma_unmap_sg() functions should be called with the same nents as the
dma_map_sg(), not the value the map function returned.

Fixes: d358f1abbf71 ("crypto: img-hash - Add Imagination Technologies hw hash accelerator")
Signed-off-by: Thomas Fourier <fourier.thomas@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

diff --git a/drivers/crypto/img-hash.c b/drivers/crypto/img-hash.c
index e050f5ff5efb6d5a6d26ead13a76646960caec20..c527cd75b6fe98d07d43fac3fa900b71f6ba2435 100644 (file)
--- a/drivers/crypto/img-hash.c
+++ b/drivers/crypto/img-hash.c
@@ -436,7 +436,7 @@ static int img_hash_write_via_dma_stop(struct img_hash_dev *hdev)
        struct img_hash_request_ctx *ctx = ahash_request_ctx(hdev->req);
 
        if (ctx->flags & DRIVER_FLAGS_SG)
-               dma_unmap_sg(hdev->dev, ctx->sg, ctx->dma_ct, DMA_TO_DEVICE);
+               dma_unmap_sg(hdev->dev, ctx->sg, 1, DMA_TO_DEVICE);
 
        return 0;
 }