In descriptor cleanup the call to desc_callback_valid can be safely
removed as both callback pointers i.e callback_result and callback
are anyway checked in invoke(). There is no much benefit in having
redundant checks.

Signed-off-by: Radhey Shyam Pandey <radhey.shyam.pan...@xilinx.com>
Signed-off-by: Nicholas Graumann <nick.graum...@gmail.com>
Reviewed-by: Appana Durga Kedareswara rao <appana.durga....@xilinx.com>
---
Changes for v2:
None
---
 drivers/dma/xilinx/xilinx_dma.c | 8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)

diff --git a/drivers/dma/xilinx/xilinx_dma.c b/drivers/dma/xilinx/xilinx_dma.c
index 440f2ce..a3f8a2c 100644
--- a/drivers/dma/xilinx/xilinx_dma.c
+++ b/drivers/dma/xilinx/xilinx_dma.c
@@ -835,11 +835,9 @@ static void xilinx_dma_chan_desc_cleanup(struct 
xilinx_dma_chan *chan)
 
                /* Run the link descriptor callback function */
                dmaengine_desc_get_callback(&desc->async_tx, &cb);
-               if (dmaengine_desc_callback_valid(&cb)) {
-                       spin_unlock_irqrestore(&chan->lock, flags);
-                       dmaengine_desc_callback_invoke(&cb, NULL);
-                       spin_lock_irqsave(&chan->lock, flags);
-               }
+               spin_unlock_irqrestore(&chan->lock, flags);
+               dmaengine_desc_callback_invoke(&cb, NULL);
+               spin_lock_irqsave(&chan->lock, flags);
 
                /* Run any dependencies, then free the descriptor */
                dma_run_dependencies(&desc->async_tx);
-- 
2.7.4

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