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path: root/drivers/dma/xilinx
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Diffstat (limited to 'drivers/dma/xilinx')
-rw-r--r--drivers/dma/xilinx/xilinx_dma.c14
1 files changed, 2 insertions, 12 deletions
diff --git a/drivers/dma/xilinx/xilinx_dma.c b/drivers/dma/xilinx/xilinx_dma.c
index df1676efdd73..8cf87b1a284b 100644
--- a/drivers/dma/xilinx/xilinx_dma.c
+++ b/drivers/dma/xilinx/xilinx_dma.c
@@ -1661,7 +1661,7 @@ xilinx_cdma_prep_memcpy(struct dma_chan *dchan, dma_addr_t dma_dst,
{
struct xilinx_dma_chan *chan = to_xilinx_chan(dchan);
struct xilinx_dma_tx_descriptor *desc;
- struct xilinx_cdma_tx_segment *segment, *prev;
+ struct xilinx_cdma_tx_segment *segment;
struct xilinx_cdma_desc_hw *hw;
if (!len || len > XILINX_DMA_MAX_TRANS_LEN)
@@ -1688,21 +1688,11 @@ xilinx_cdma_prep_memcpy(struct dma_chan *dchan, dma_addr_t dma_dst,
hw->dest_addr_msb = upper_32_bits(dma_dst);
}
- /* Fill the previous next descriptor with current */
- prev = list_last_entry(&desc->segments,
- struct xilinx_cdma_tx_segment, node);
- prev->hw.next_desc = segment->phys;
-
/* Insert the segment into the descriptor segments list. */
list_add_tail(&segment->node, &desc->segments);
- prev = segment;
-
- /* Link the last hardware descriptor with the first. */
- segment = list_first_entry(&desc->segments,
- struct xilinx_cdma_tx_segment, node);
desc->async_tx.phys = segment->phys;
- prev->hw.next_desc = segment->phys;
+ hw->next_desc = segment->phys;
return &desc->async_tx;