diff options
| author | Tadeusz Struk <[email protected]> | 2014-10-13 18:24:26 -0700 |
|---|---|---|
| committer | Herbert Xu <[email protected]> | 2014-10-24 22:37:33 +0800 |
| commit | 923a6e5e5f171317ac8bb462ac4b814fa7880d3c (patch) | |
| tree | 0ff41bc4f02479cb4d12a9113b80a2616bef0022 | |
| parent | f114040e3ea6e07372334ade75d1ee0775c355e1 (diff) | |
crypto: qat - Prevent dma mapping zero length assoc data
Do not attempt to dma map associated data if it is zero length.
Cc: [email protected]
Signed-off-by: Tadeusz Struk <[email protected]>
Tested-by: Nikolay Aleksandrov <[email protected]>
Reviewed-by: Prarit Bhargava <[email protected]>
Signed-off-by: Herbert Xu <[email protected]>
| -rw-r--r-- | drivers/crypto/qat/qat_common/qat_algs.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/crypto/qat/qat_common/qat_algs.c b/drivers/crypto/qat/qat_common/qat_algs.c index f2e2f158cfbe..699ccf44e9bb 100644 --- a/drivers/crypto/qat/qat_common/qat_algs.c +++ b/drivers/crypto/qat/qat_common/qat_algs.c @@ -605,6 +605,8 @@ static int qat_alg_sgl_to_bufl(struct qat_crypto_instance *inst, goto err; for_each_sg(assoc, sg, assoc_n, i) { + if (!sg->length) + continue; bufl->bufers[bufs].addr = dma_map_single(dev, sg_virt(sg), sg->length, |