From 2b5c49131fc4e709910c07444f0befd21ad28bcf Mon Sep 17 00:00:00 2001 From: Hauke Mehrtens Date: Sun, 22 Jul 2018 01:30:57 +0200 Subject: [PATCH] MIPS: lantiq: Use dma_zalloc_coherent() in dma code Instead of using dma_alloc_coherent() and memset() directly use dma_zalloc_coherent(). Signed-off-by: Hauke Mehrtens Signed-off-by: Paul Burton Patchwork: https://patchwork.linux-mips.org/patch/19962/ Cc: ralf@linux-mips.org Cc: jhogan@kernel.org Cc: john@phrozen.org Cc: linux-mips@linux-mips.org Cc: dev@kresin.me --- arch/mips/lantiq/xway/dma.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/arch/mips/lantiq/xway/dma.c b/arch/mips/lantiq/xway/dma.c index 805b3a6ab2d6..4b9fbb6744ad 100644 --- a/arch/mips/lantiq/xway/dma.c +++ b/arch/mips/lantiq/xway/dma.c @@ -130,10 +130,9 @@ ltq_dma_alloc(struct ltq_dma_channel *ch) unsigned long flags; ch->desc = 0; - ch->desc_base = dma_alloc_coherent(NULL, + ch->desc_base = dma_zalloc_coherent(NULL, LTQ_DESC_NUM * LTQ_DESC_SIZE, &ch->phys, GFP_ATOMIC); - memset(ch->desc_base, 0, LTQ_DESC_NUM * LTQ_DESC_SIZE); spin_lock_irqsave(<q_dma_lock, flags); ltq_dma_w32(ch->nr, LTQ_DMA_CS);