4.19-stable review patch. If anyone has any objections, please let me know.
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From: Ovidiu Panait ovidiu.panait@windriver.com
[ Upstream commit 2dba8e1d1a7957dcbe7888846268538847b471d1 ]
The sg lists are not unmapped in case of timeout errors. Fix this.
Fixes: 5a2bb93f5992 ("crypto: sahara - add support for SHA1/256") Fixes: 5de8875281e1 ("crypto: sahara - Add driver for SAHARA2 accelerator.") Signed-off-by: Ovidiu Panait ovidiu.panait@windriver.com Signed-off-by: Herbert Xu herbert@gondor.apana.org.au Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/crypto/sahara.c | 18 ++++++++++-------- 1 file changed, 10 insertions(+), 8 deletions(-)
diff --git a/drivers/crypto/sahara.c b/drivers/crypto/sahara.c index a9359b0ed045..96cb77abbabb 100644 --- a/drivers/crypto/sahara.c +++ b/drivers/crypto/sahara.c @@ -583,16 +583,17 @@ static int sahara_aes_process(struct ablkcipher_request *req)
timeout = wait_for_completion_timeout(&dev->dma_completion, msecs_to_jiffies(SAHARA_TIMEOUT_MS)); - if (!timeout) { - dev_err(dev->device, "AES timeout\n"); - return -ETIMEDOUT; - }
dma_unmap_sg(dev->device, dev->out_sg, dev->nb_out_sg, DMA_FROM_DEVICE); dma_unmap_sg(dev->device, dev->in_sg, dev->nb_in_sg, DMA_TO_DEVICE);
+ if (!timeout) { + dev_err(dev->device, "AES timeout\n"); + return -ETIMEDOUT; + } + return 0; }
@@ -1027,15 +1028,16 @@ static int sahara_sha_process(struct ahash_request *req)
timeout = wait_for_completion_timeout(&dev->dma_completion, msecs_to_jiffies(SAHARA_TIMEOUT_MS)); - if (!timeout) { - dev_err(dev->device, "SHA timeout\n"); - return -ETIMEDOUT; - }
if (rctx->sg_in_idx) dma_unmap_sg(dev->device, dev->in_sg, dev->nb_in_sg, DMA_TO_DEVICE);
+ if (!timeout) { + dev_err(dev->device, "SHA timeout\n"); + return -ETIMEDOUT; + } + memcpy(rctx->context, dev->context_base, rctx->context_size);
if (req->result && rctx->last)