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: NKedareswara rao Appana <appanad@xilinx.com> Signed-off-by: NVinod Koul <vinod.koul@intel.com>
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