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authorzhong jiang <zhongjiang@huawei.com>2018-08-18 11:16:55 -0400
committerMauro Carvalho Chehab <mchehab+samsung@kernel.org>2018-09-12 10:48:59 -0400
commitee23c78c79b6599c9791d7615f0282aa1536b019 (patch)
tree94a9afcae46cada174ee170bf4c72839d443a99b /drivers/media/platform/mtk-vcodec/mtk_vcodec_util.c
parenteac7230fdb4672c2cb56f6a01a1744f562c01f80 (diff)
media: mtk_vcodec_util: Use dma_zalloc_coherent to replace dma_alloc_coherent + memset
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> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Diffstat (limited to 'drivers/media/platform/mtk-vcodec/mtk_vcodec_util.c')
-rw-r--r--drivers/media/platform/mtk-vcodec/mtk_vcodec_util.c5
1 files changed, 1 insertions, 4 deletions
diff --git a/drivers/media/platform/mtk-vcodec/mtk_vcodec_util.c b/drivers/media/platform/mtk-vcodec/mtk_vcodec_util.c
index 0c28d0b995cc..e80123cba406 100644
--- a/drivers/media/platform/mtk-vcodec/mtk_vcodec_util.c
+++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_util.c
@@ -49,16 +49,13 @@ int mtk_vcodec_mem_alloc(struct mtk_vcodec_ctx *data,
struct mtk_vcodec_ctx *ctx = (struct mtk_vcodec_ctx *)data;
struct device *dev = &ctx->dev->plat_dev->dev;
- mem->va = dma_alloc_coherent(dev, size, &mem->dma_addr, GFP_KERNEL);
-
+ mem->va = dma_zalloc_coherent(dev, size, &mem->dma_addr, GFP_KERNEL);
if (!mem->va) {
mtk_v4l2_err("%s dma_alloc size=%ld failed!", dev_name(dev),
size);
return -ENOMEM;
}
- memset(mem->va, 0, size);
-
mtk_v4l2_debug(3, "[%d] - va = %p", ctx->id, mem->va);
mtk_v4l2_debug(3, "[%d] - dma = 0x%lx", ctx->id,
(unsigned long)mem->dma_addr);