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authorJoe Perches <joe@perches.com>2014-06-15 13:37:35 -0700
committerVinod Koul <vinod.koul@intel.com>2014-07-14 22:29:35 +0530
commit9f92d2232d5fabe18741044d8004160f8cf80e9e (patch)
treefd8f2e649ad34f0b44d9aee726476b7408e1d334 /drivers/dma/mxs-dma.c
parent89751d0a2a05197e0823eb0a363efd034175a76f (diff)
downloadop-kernel-dev-9f92d2232d5fabe18741044d8004160f8cf80e9e.zip
op-kernel-dev-9f92d2232d5fabe18741044d8004160f8cf80e9e.tar.gz
dmaengine: Use dma_zalloc_coherent
Use the zeroing function instead of dma_alloc_coherent & memset(,0,) Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Diffstat (limited to 'drivers/dma/mxs-dma.c')
-rw-r--r--drivers/dma/mxs-dma.c8
1 files changed, 3 insertions, 5 deletions
diff --git a/drivers/dma/mxs-dma.c b/drivers/dma/mxs-dma.c
index ead4913..dc1dba7 100644
--- a/drivers/dma/mxs-dma.c
+++ b/drivers/dma/mxs-dma.c
@@ -413,16 +413,14 @@ static int mxs_dma_alloc_chan_resources(struct dma_chan *chan)
struct mxs_dma_engine *mxs_dma = mxs_chan->mxs_dma;
int ret;
- mxs_chan->ccw = dma_alloc_coherent(mxs_dma->dma_device.dev,
- CCW_BLOCK_SIZE, &mxs_chan->ccw_phys,
- GFP_KERNEL);
+ mxs_chan->ccw = dma_zalloc_coherent(mxs_dma->dma_device.dev,
+ CCW_BLOCK_SIZE,
+ &mxs_chan->ccw_phys, GFP_KERNEL);
if (!mxs_chan->ccw) {
ret = -ENOMEM;
goto err_alloc;
}
- memset(mxs_chan->ccw, 0, CCW_BLOCK_SIZE);
-
if (mxs_chan->chan_irq != NO_IRQ) {
ret = request_irq(mxs_chan->chan_irq, mxs_dma_int_handler,
0, "mxs-dma", mxs_dma);
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