media: mtk_vcodec_util: Use dma_zalloc_coherent to replace dma_alloc_coherent + memset (ee23c78c) · Commits · 戴 / test

dma_zalloc_coherent has implemented the dma_alloc_coherent() + memset(), We prefer to dma_zalloc_coherent instead of open-codeing. Signed-off-by:

drivers/media/platform/mtk-vcodec/mtk_vcodec_util.c

+1 −4

Original line number	Diff line number	Diff line
		@@ -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);