From: Kedareswara rao Appana Date: Wed, 3 Jan 2018 06:42:10 +0000 (+0530) Subject: dmaengine: xilinx_dma: Fix warning variable prev set but not used X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=4b597c634a2a8fbc8ecbdaf7c2b4c8bb68cfba20;p=linux.git dmaengine: xilinx_dma: Fix warning variable prev set but not used This patch fixes the below sparse warning in the driver drivers/dma/xilinx/xilinx_dma.c: In function ‘xilinx_vdma_dma_prep_interleaved’: drivers/dma/xilinx/xilinx_dma.c:1614:43: warning: variable ‘prev’ set but not used [-Wunused-but-set-variable] struct xilinx_vdma_tx_segment *segment, *prev = NULL; Signed-off-by: Kedareswara rao Appana Signed-off-by: Vinod Koul --- diff --git a/drivers/dma/xilinx/xilinx_dma.c b/drivers/dma/xilinx/xilinx_dma.c index e32ebe0837af1..855ea14f6877b 100644 --- a/drivers/dma/xilinx/xilinx_dma.c +++ b/drivers/dma/xilinx/xilinx_dma.c @@ -1611,7 +1611,7 @@ xilinx_vdma_dma_prep_interleaved(struct dma_chan *dchan, { struct xilinx_dma_chan *chan = to_xilinx_chan(dchan); struct xilinx_dma_tx_descriptor *desc; - struct xilinx_vdma_tx_segment *segment, *prev = NULL; + struct xilinx_vdma_tx_segment *segment; struct xilinx_vdma_desc_hw *hw; if (!is_slave_direction(xt->dir)) @@ -1665,8 +1665,6 @@ xilinx_vdma_dma_prep_interleaved(struct dma_chan *dchan, /* 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_vdma_tx_segment, node);