diff options
| author | Joe Perches <joe@perches.com> | 2014-06-15 13:37:35 -0700 |
|---|---|---|
| committer | Vinod Koul <vinod.koul@intel.com> | 2014-07-14 22:29:35 +0530 |
| commit | 9f92d2232d5fabe18741044d8004160f8cf80e9e (patch) | |
| tree | fd8f2e649ad34f0b44d9aee726476b7408e1d334 /drivers/dma/mxs-dma.c | |
| parent | 89751d0a2a05197e0823eb0a363efd034175a76f (diff) | |
| download | op-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.c | 8 |
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); |
