ata: Use dma_zalloc_coherent

Use the zeroing function instead of dma_alloc_coherent & memset(,0,)

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Tejun Heo <tj@kernel.org>

diff --git a/drivers/ata/sata_fsl.c b/drivers/ata/sata_fsl.c
index 616a6d2..07bc7e4 100644 (file)
--- a/drivers/ata/sata_fsl.c
+++ b/drivers/ata/sata_fsl.c
@@ -734,13 +734,12 @@ static int sata_fsl_port_start(struct ata_port *ap)
        if (!pp)
                return -ENOMEM;
 
-       mem = dma_alloc_coherent(dev, SATA_FSL_PORT_PRIV_DMA_SZ, &mem_dma,
-                                GFP_KERNEL);
+       mem = dma_zalloc_coherent(dev, SATA_FSL_PORT_PRIV_DMA_SZ, &mem_dma,
+                                 GFP_KERNEL);
        if (!mem) {
                kfree(pp);
                return -ENOMEM;
        }
-       memset(mem, 0, SATA_FSL_PORT_PRIV_DMA_SZ);
 
        pp->cmdslot = mem;
        pp->cmdslot_paddr = mem_dma;