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Unverified Commit 2b5c4913 authored by Hauke Mehrtens's avatar Hauke Mehrtens Committed by Paul Burton
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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: default avatarHauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: default avatarPaul Burton <paul.burton@mips.com>
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
parent a3071886

arch/mips/lantiq/xway/dma.c

+1 −2
Original line number Diff line number Diff line
@@ -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(&ltq_dma_lock, flags);

	ltq_dma_w32(ch->nr, LTQ_DMA_CS);