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Subject[PATCH 1/2] media: ipu3-cio2: Use dma_zalloc_coherent to replace dma_alloc_coherent + memset
Date
dma_zalloc_coherent has implemented the dma_alloc_coherent() + memset(),
We prefer to dma_zalloc_coherent instead of open-codeing.

Signed-off-by: zhong jiang <zhongjiang@huawei.com>
---
drivers/media/pci/intel/ipu3/ipu3-cio2.c | 6 ++----
1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/media/pci/intel/ipu3/ipu3-cio2.c b/drivers/media/pci/intel/ipu3/ipu3-cio2.c
index 2902715..f0c6374 100644
--- a/drivers/media/pci/intel/ipu3/ipu3-cio2.c
+++ b/drivers/media/pci/intel/ipu3/ipu3-cio2.c
@@ -218,13 +218,11 @@ static int cio2_fbpt_init(struct cio2_device *cio2, struct cio2_queue *q)
{
struct device *dev = &cio2->pci_dev->dev;

- q->fbpt = dma_alloc_coherent(dev, CIO2_FBPT_SIZE, &q->fbpt_bus_addr,
- GFP_KERNEL);
+ q->fbpt = dma_zalloc_coherent(dev, CIO2_FBPT_SIZE, &q->fbpt_bus_addr,
+ GFP_KERNEL);
if (!q->fbpt)
return -ENOMEM;

- memset(q->fbpt, 0, CIO2_FBPT_SIZE);
-
return 0;
}

--
1.7.12.4
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