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| author | Julia Lawall <Julia.Lawall@lip6.fr> | 2016-04-29 22:09:08 +0200 |
|---|---|---|
| committer | Vinod Koul <vinod.koul@intel.com> | 2016-05-03 08:53:11 +0200 |
| commit | 1c85a8440f0cd19e7c1235c8abfc3e07b2226691 (patch) | |
| tree | 9351d6d0adfaff77db9df79c786d8b7765f3aa55 /drivers/dma/mmp_pdma.c | |
| parent | dmaengine: core: Revert back to pr_debug in __dma_request_channel() (diff) | |
| download | linux-1c85a8440f0cd19e7c1235c8abfc3e07b2226691.tar.xz linux-1c85a8440f0cd19e7c1235c8abfc3e07b2226691.zip | |
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/mmp_pdma.c')
| -rw-r--r-- | drivers/dma/mmp_pdma.c | 3 |
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 */ |