[v2,4/4] dmaengine: xilinx_dma: Free BD consistent memory
From: Kedareswara rao Appana <appana.durga.rao@xilinx.com>
Date: 2018-01-03 06:42:20
Also in:
linux-arm-kernel, lkml
Subsystem:
dma generic offload engine subsystem, the rest · Maintainers:
Vinod Koul, Linus Torvalds
Free BD consistent memory while freeing the channel i.e in free_chan_resources. Signed-off-by: Radhey Shyam Pandey <redacted> Signed-off-by: Kedareswara rao Appana <redacted> --- Changes for v2: --> None. drivers/dma/xilinx/xilinx_dma.c | 5 +++++ 1 file changed, 5 insertions(+)
diff --git a/drivers/dma/xilinx/xilinx_dma.c b/drivers/dma/xilinx/xilinx_dma.c
index 845e638..a9edbd8 100644
--- a/drivers/dma/xilinx/xilinx_dma.c
+++ b/drivers/dma/xilinx/xilinx_dma.c@@ -764,6 +764,11 @@ static void xilinx_dma_free_chan_resources(struct dma_chan *dchan) INIT_LIST_HEAD(&chan->free_seg_list); spin_unlock_irqrestore(&chan->lock, flags); + /* Free memory that is allocated for BD */ + dma_free_coherent(chan->dev, sizeof(*chan->seg_v) * + XILINX_DMA_NUM_DESCS, chan->seg_v, + chan->seg_p); + /* Free Memory that is allocated for cyclic DMA Mode */ dma_free_coherent(chan->dev, sizeof(*chan->cyclic_seg_v), chan->cyclic_seg_v, chan->cyclic_seg_p);