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| author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-01-28 08:22:00 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-01-28 08:22:00 +0100 |
| commit | 83b21ed0fc2a7b17c6b9d4f72f664841f797380b (patch) | |
| tree | 99272c0f69b8d762bf82400e6bdb84146b5baadb /drivers/crypto/caam/caamhash.c | |
| parent | sysrq: Remove duplicated sysrq message (diff) | |
| parent | Linux 5.0-rc4 (diff) | |
| download | linux-83b21ed0fc2a7b17c6b9d4f72f664841f797380b.tar.xz linux-83b21ed0fc2a7b17c6b9d4f72f664841f797380b.zip | |
Merge 5.0-rc4 into tty-next
We need the tty and serial fixes in here as well.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/crypto/caam/caamhash.c')
| -rw-r--r-- | drivers/crypto/caam/caamhash.c | 15 |
1 files changed, 9 insertions, 6 deletions
diff --git a/drivers/crypto/caam/caamhash.c b/drivers/crypto/caam/caamhash.c index 81712aa5d0f2..bb1a2cdf1951 100644 --- a/drivers/crypto/caam/caamhash.c +++ b/drivers/crypto/caam/caamhash.c @@ -1072,13 +1072,16 @@ static int ahash_final_no_ctx(struct ahash_request *req) desc = edesc->hw_desc; - state->buf_dma = dma_map_single(jrdev, buf, buflen, DMA_TO_DEVICE); - if (dma_mapping_error(jrdev, state->buf_dma)) { - dev_err(jrdev, "unable to map src\n"); - goto unmap; - } + if (buflen) { + state->buf_dma = dma_map_single(jrdev, buf, buflen, + DMA_TO_DEVICE); + if (dma_mapping_error(jrdev, state->buf_dma)) { + dev_err(jrdev, "unable to map src\n"); + goto unmap; + } - append_seq_in_ptr(desc, state->buf_dma, buflen, 0); + append_seq_in_ptr(desc, state->buf_dma, buflen, 0); + } edesc->dst_dma = map_seq_out_ptr_result(desc, jrdev, req->result, digestsize); |