rt2x00: 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: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/rt2x00/rt2x00mmio.c b/drivers/net/wireless/rt2x00/rt2x00mmio.c
index 6f236ea180aa3df23dbf8be831f367c020f4a1a2..f0178fd4fe5ff8c078749e6df8b82d1ea7a26a0c 100644 (file)
--- a/drivers/net/wireless/rt2x00/rt2x00mmio.c
+++ b/drivers/net/wireless/rt2x00/rt2x00mmio.c
@@ -119,14 +119,12 @@ static int rt2x00mmio_alloc_queue_dma(struct rt2x00_dev *rt2x00dev,
        /*
         * Allocate DMA memory for descriptor and buffer.
         */
-       addr = dma_alloc_coherent(rt2x00dev->dev,
-                                 queue->limit * queue->desc_size,
-                                 &dma, GFP_KERNEL);
+       addr = dma_zalloc_coherent(rt2x00dev->dev,
+                                  queue->limit * queue->desc_size, &dma,
+                                  GFP_KERNEL);
        if (!addr)
                return -ENOMEM;
 
-       memset(addr, 0, queue->limit * queue->desc_size);
-
        /*
         * Initialize all queue entries to contain valid addresses.
         */