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dmaengine: vdma: Use dma_pool_zalloc 

Dma_pool_zalloc combines dma_pool_alloc and memset 0.  The semantic patch
that makes this transformation is as follows: (http://coccinelle.lip6.fr/)

// <smpl>
@@
expression d,e;
statement S;
@@

        d =
-            dma_pool_alloc
+            dma_pool_zalloc
             (...);
        if (!d) S
-       memset(d, 0, sizeof(*d));
// </smpl>

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Acked-by: Sören Brinkmann <soren.brinkmann@xilinx.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
This commit is contained in:
Julia Lawall 2016-04-29 22:09:09 +02:00 committed by Vinod Koul
parent 48a59edc63
commit 2ba4f8abfe
1 changed files with 1 additions and 2 deletions
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3
drivers/dma/xilinx/xilinx_vdma.c
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@ -343,11 +343,10 @@ xilinx_vdma_alloc_tx_segment(struct xilinx_vdma_chan *chan)
struct xilinx_vdma_tx_segment *segment;
dma_addr_t phys;
segment = dma_pool_alloc(chan->desc_pool, GFP_ATOMIC, &phys);
segment = dma_pool_zalloc(chan->desc_pool, GFP_ATOMIC, &phys);
if (!segment)
return NULL;
memset(segment, 0, sizeof(*segment));
segment->phys = phys;
return segment;