Message ID | 95cbea4b835bb2689036afe78ff0b2239a24f352.1541480353.git.baolin.wang@linaro.org (mailing list archive) |
---|---|
State | Accepted |
Headers | show |
Series | Add some fixes and new feature for SPRD DMA | expand |
diff --git a/drivers/dma/sprd-dma.c b/drivers/dma/sprd-dma.c index 4f3587b..e6a74dc 100644 --- a/drivers/dma/sprd-dma.c +++ b/drivers/dma/sprd-dma.c @@ -697,7 +697,8 @@ static int sprd_dma_fill_desc(struct dma_chan *chan, hw->cfg |= SPRD_DMA_LINKLIST_EN; /* link-list index */ - temp = (sg_index + 1) % sglen; + temp = sglen ? (sg_index + 1) % sglen : 0; + /* Next link-list configuration's physical address offset */ temp = temp * sizeof(*hw) + SPRD_DMA_CHN_SRC_ADDR; /*