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crypto: sun8i-ss - test error before assigning 

The first thing we should do after dma_map_single() is to test the
result.

Signed-off-by: Corentin Labbe <clabbe@baylibre.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Corentin Labbe 2022-05-02 20:19:17 +00:00 committed by Herbert Xu
parent 46e2fcbcbe
commit d86e3f37a6
1 changed files with 4 additions and 4 deletions
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8
drivers/crypto/allwinner/sun8i-ss/sun8i-ss-hash.c
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@ -420,15 +420,15 @@ int sun8i_ss_hash_run(struct crypto_engine *engine, void *breq)
}
addr_pad = dma_map_single(ss->dev, pad, j * 4, DMA_TO_DEVICE);
rctx->t_src[i].addr = addr_pad;
rctx->t_src[i].len = j;
rctx->t_dst[i].addr = addr_res;
rctx->t_dst[i].len = digestsize / 4;
if (dma_mapping_error(ss->dev, addr_pad)) {
dev_err(ss->dev, "DMA error on padding SG\n");
err = -EINVAL;
goto theend;
}
rctx->t_src[i].addr = addr_pad;
rctx->t_src[i].len = j;
rctx->t_dst[i].addr = addr_res;
rctx->t_dst[i].len = digestsize / 4;
err = sun8i_ss_run_hash_task(ss, rctx, crypto_tfm_alg_name(areq->base.tfm));