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dmaengine: vdma: Fix compilation warning in cyclic dma mode
This patch fixes the below compilation warining. drivers/dma/xilinx/xilinx_vdma.c: In function 'xilinx_dma_prep_dma_cyclic': drivers/dma/xilinx/xilinx_vdma.c:1808:23: warning: 'segment' may be used uninitialized in this function [-Wmaybe-uninitialized] segment->hw.control |= XILINX_DMA_BD_SOP; The start of packet (SOP) should be set to the first segment in the desc chain not for the last segment of the desc chain. Signed-off-by: Kedareswara rao Appana <appanad@xilinx.com> Reported-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
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@ -1805,7 +1805,7 @@ static struct dma_async_tx_descriptor *xilinx_dma_prep_dma_cyclic(
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/* For the last DMA_MEM_TO_DEV transfer, set EOP */
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if (direction == DMA_MEM_TO_DEV) {
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segment->hw.control |= XILINX_DMA_BD_SOP;
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head_segment->hw.control |= XILINX_DMA_BD_SOP;
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segment = list_last_entry(&desc->segments,
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struct xilinx_axidma_tx_segment,
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node);
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