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 <[email protected]> Signed-off-by: Paul Burton <[email protected]> Patchwork: https://patchwork.linux-mips.org/patch/19962/ Cc: [email protected] Cc: [email protected] Cc: [email protected] Cc: [email protected] Cc: [email protected]
modi0012 · Jul 23, 2018 · 2b5c491 · 2b5c491
1 parent a307188
commit 2b5c491
Showing 1 changed file with 1 addition and 2 deletions.
diff --git 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(&ltq_dma_lock, flags);
 	ltq_dma_w32(ch->nr, LTQ_DMA_CS);