diff options
| author | Greg Kroah-Hartman | 2019-01-28 08:44:58 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman | 2019-01-28 08:44:58 +0100 |
| commit | c9381e185fdcf86e9d7966d638c933894f87cdd7 (patch) | |
| tree | d99259aded85a3fb95e9d52c56d9d3a0cfdfe460 /drivers/crypto/caam/caamhash.c | |
| parent | usb: ftdi-elan: Fix if == else warnings in ftdi_elan_respond_engine (diff) | |
| parent | Linux 5.0-rc4 (diff) | |
| download | kernel-qcow2-linux-c9381e185fdcf86e9d7966d638c933894f87cdd7.tar.gz kernel-qcow2-linux-c9381e185fdcf86e9d7966d638c933894f87cdd7.tar.xz kernel-qcow2-linux-c9381e185fdcf86e9d7966d638c933894f87cdd7.zip | |
Merge 5.0-rc4 into usb-next
We need the USB 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); |