[PATCH] arch/powerpc: Use dma_zalloc_coherent

[Sabyasachi Gupta]

Replaced dma_alloc_coherent + memset with dma_zalloc_coherent

Signed-off-by: Sabyasachi Gupta <sabyasachi.li...@gmail.com>
---
 arch/powerpc/platforms/pasemi/dma_lib.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/arch/powerpc/platforms/pasemi/dma_lib.c 
b/arch/powerpc/platforms/pasemi/dma_lib.c
index 53384eb..d18d164 100644
--- a/arch/powerpc/platforms/pasemi/dma_lib.c
+++ b/arch/powerpc/platforms/pasemi/dma_lib.c
@@ -255,15 +255,13 @@ int pasemi_dma_alloc_ring(struct pasemi_dmachan *chan, 
int ring_size)
 
        chan->ring_size = ring_size;
 
-       chan->ring_virt = dma_alloc_coherent(&dma_pdev->dev,
+       chan->ring_virt = dma_zalloc_coherent(&dma_pdev->dev,
                                             ring_size * sizeof(u64),
                                             &chan->ring_dma, GFP_KERNEL);
 
        if (!chan->ring_virt)
                return -ENOMEM;
 
-       memset(chan->ring_virt, 0, ring_size * sizeof(u64));
-
        return 0;
 }
 EXPORT_SYMBOL(pasemi_dma_alloc_ring);
-- 
2.7.4