diff options
Diffstat (limited to 'drivers/crypto/omap-sham.c')
| -rw-r--r-- | drivers/crypto/omap-sham.c | 21 |
1 files changed, 11 insertions, 10 deletions
diff --git a/drivers/crypto/omap-sham.c b/drivers/crypto/omap-sham.c index 3f2bf98db54b..33bea520f50a 100644 --- a/drivers/crypto/omap-sham.c +++ b/drivers/crypto/omap-sham.c @@ -151,7 +151,7 @@ struct omap_sham_reqctx { /* walk state */ struct scatterlist *sg; - struct scatterlist sgl; + struct scatterlist sgl_tmp; unsigned int offset; /* offset in current sg */ unsigned int total; /* total request */ @@ -583,18 +583,19 @@ static int omap_sham_xmit_dma(struct omap_sham_dev *dd, dma_addr_t dma_addr, if (is_sg) { /* * The SG entry passed in may not have the 'length' member - * set correctly so use a local SG entry (sgl) with the + * set correctly so use a local SG entry (sgl_tmp) with the * proper value for 'length' instead. If this is not done, * the dmaengine may try to DMA the incorrect amount of data. */ - sg_init_table(&ctx->sgl, 1); - sg_assign_page(&ctx->sgl, sg_page(ctx->sg)); - ctx->sgl.offset = ctx->sg->offset; - sg_dma_len(&ctx->sgl) = len32; - sg_dma_address(&ctx->sgl) = sg_dma_address(ctx->sg); - - tx = dmaengine_prep_slave_sg(dd->dma_lch, &ctx->sgl, 1, - DMA_MEM_TO_DEV, DMA_PREP_INTERRUPT | DMA_CTRL_ACK); + sg_init_table(&ctx->sgl_tmp, 1); + sg_assign_page(&ctx->sgl_tmp, sg_page(ctx->sg)); + ctx->sgl_tmp.offset = ctx->sg->offset; + sg_dma_len(&ctx->sgl_tmp) = len32; + sg_dma_address(&ctx->sgl_tmp) = sg_dma_address(ctx->sg); + + tx = dmaengine_prep_slave_sg(dd->dma_lch, &ctx->sgl_tmp, 1, + DMA_MEM_TO_DEV, + DMA_PREP_INTERRUPT | DMA_CTRL_ACK); } else { tx = dmaengine_prep_slave_single(dd->dma_lch, dma_addr, len32, DMA_MEM_TO_DEV, DMA_PREP_INTERRUPT | DMA_CTRL_ACK); |