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authorJulia Lawall <Julia.Lawall@lip6.fr>2016-04-29 22:09:08 +0200
committerVinod Koul <vinod.koul@intel.com>2016-05-03 12:23:11 +0530
commit1c85a8440f0cd19e7c1235c8abfc3e07b2226691 (patch)
tree9351d6d0adfaff77db9df79c786d8b7765f3aa55 /drivers/dma
parent4c4d7f878589585d32b81aab6ed4a5066fae1091 (diff)
downloadlinux-1c85a8440f0cd19e7c1235c8abfc3e07b2226691.tar.bz2
dmaengine: mmp_pdma: 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> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Diffstat (limited to 'drivers/dma')
-rw-r--r--drivers/dma/mmp_pdma.c3
1 files changed, 1 insertions, 2 deletions
diff --git a/drivers/dma/mmp_pdma.c b/drivers/dma/mmp_pdma.c
index e39457f13d4d..56f1fd68b620 100644
--- a/drivers/dma/mmp_pdma.c
+++ b/drivers/dma/mmp_pdma.c
@@ -364,13 +364,12 @@ mmp_pdma_alloc_descriptor(struct mmp_pdma_chan *chan)
struct mmp_pdma_desc_sw *desc;
dma_addr_t pdesc;
- desc = dma_pool_alloc(chan->desc_pool, GFP_ATOMIC, &pdesc);
+ desc = dma_pool_zalloc(chan->desc_pool, GFP_ATOMIC, &pdesc);
if (!desc) {
dev_err(chan->dev, "out of memory for link descriptor\n");
return NULL;
}
- memset(desc, 0, sizeof(*desc));
INIT_LIST_HEAD(&desc->tx_list);
dma_async_tx_descriptor_init(&desc->async_tx, &chan->chan);
/* each desc has submit */