diff options
Diffstat (limited to 'drivers/crypto/caam/sg_sw_sec4.h')
| -rw-r--r-- | drivers/crypto/caam/sg_sw_sec4.h | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/drivers/crypto/caam/sg_sw_sec4.h b/drivers/crypto/caam/sg_sw_sec4.h index e05fc58c9637..f3f5187a14c3 100644 --- a/drivers/crypto/caam/sg_sw_sec4.h +++ b/drivers/crypto/caam/sg_sw_sec4.h @@ -1,7 +1,7 @@ /* * CAAM/SEC 4.x functions for using scatterlists in caam driver * - * Copyright (C) 2008-2012 Freescale Semiconductor, Inc. + * Copyright (C) 2008-2013 Freescale Semiconductor, Inc. * */ @@ -93,9 +93,13 @@ static int dma_map_sg_chained(struct device *dev, struct scatterlist *sg, { if (unlikely(chained)) { int i; + struct scatterlist *tsg = sg; + /* Needs a temp copy for sg pointer, otherwise + * scatterwalke_sg_next will return null when list is + * ended */ for (i = 0; i < nents; i++) { - dma_map_sg(dev, sg, 1, dir); - sg = scatterwalk_sg_next(sg); + dma_map_sg(dev, tsg, 1, dir); + tsg = scatterwalk_sg_next(tsg); } } else { dma_map_sg(dev, sg, nents, dir); |