diff options
| -rw-r--r-- | drivers/dma/xilinx/xilinx_vdma.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/drivers/dma/xilinx/xilinx_vdma.c b/drivers/dma/xilinx/xilinx_vdma.c index a6e64767186e..10937945a527 100644 --- a/drivers/dma/xilinx/xilinx_vdma.c +++ b/drivers/dma/xilinx/xilinx_vdma.c | |||
| @@ -971,9 +971,11 @@ xilinx_vdma_dma_prep_interleaved(struct dma_chan *dchan, | |||
| 971 | hw->buf_addr = xt->src_start; | 971 | hw->buf_addr = xt->src_start; |
| 972 | 972 | ||
| 973 | /* Link the previous next descriptor to current */ | 973 | /* Link the previous next descriptor to current */ |
| 974 | prev = list_last_entry(&desc->segments, | 974 | if (!list_empty(&desc->segments)) { |
| 975 | struct xilinx_vdma_tx_segment, node); | 975 | prev = list_last_entry(&desc->segments, |
| 976 | prev->hw.next_desc = segment->phys; | 976 | struct xilinx_vdma_tx_segment, node); |
| 977 | prev->hw.next_desc = segment->phys; | ||
| 978 | } | ||
| 977 | 979 | ||
| 978 | /* Insert the segment into the descriptor segments list. */ | 980 | /* Insert the segment into the descriptor segments list. */ |
| 979 | list_add_tail(&segment->node, &desc->segments); | 981 | list_add_tail(&segment->node, &desc->segments); |