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crypto: qat - unmap buffers before free for RSA 

[ Upstream commit d776b25495 ]

The callback function for RSA frees the memory allocated for the source
and destination buffers before unmapping them.
This sequence is wrong.

Change the cleanup sequence to unmap the buffers before freeing them.

Fixes: 3dfaf0071e ("crypto: qat - remove dma_free_coherent() for RSA")
Signed-off-by: Hareshx Sankar Raj <hareshx.sankar.raj@intel.com>
Co-developed-by: Bolemx Sivanagaleela <bolemx.sivanagaleela@intel.com>
Signed-off-by: Bolemx Sivanagaleela <bolemx.sivanagaleela@intel.com>
Reviewed-by: Giovanni Cabiddu <giovanni.cabiddu@intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Giovanni Cabiddu <giovanni.cabiddu@intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Hareshx Sankar Raj 2023-06-05 22:06:07 +01:00 committed by Greg Kroah-Hartman
parent 32b09834c3
commit 08749a9005
1 changed files with 4 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
drivers/crypto/qat/qat_common/qat_asym_algs.c
View File

@ -520,12 +520,14 @@ static void qat_rsa_cb(struct icp_qat_fw_pke_resp *resp)
err = (err == ICP_QAT_FW_COMN_STATUS_FLAG_OK) ? 0 : -EINVAL;
kfree_sensitive(req->src_align);
dma_unmap_single(dev, req->in.rsa.enc.m, req->ctx.rsa->key_sz,
DMA_TO_DEVICE);
kfree_sensitive(req->src_align);
areq->dst_len = req->ctx.rsa->key_sz;
dma_unmap_single(dev, req->out.rsa.enc.c, req->ctx.rsa->key_sz,
DMA_FROM_DEVICE);
if (req->dst_align) {
scatterwalk_map_and_copy(req->dst_align, areq->dst, 0,
areq->dst_len, 1);
@ -533,9 +535,6 @@ static void qat_rsa_cb(struct icp_qat_fw_pke_resp *resp)
kfree_sensitive(req->dst_align);
}
dma_unmap_single(dev, req->out.rsa.enc.c, req->ctx.rsa->key_sz,
DMA_FROM_DEVICE);
dma_unmap_single(dev, req->phy_in, sizeof(struct qat_rsa_input_params),
DMA_TO_DEVICE);
dma_unmap_single(dev, req->phy_out,