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authorJoe Perches <joe@perches.com>2014-06-15 22:37:43 +0200
committerJohn W. Linville <linville@tuxdriver.com>2014-06-19 21:49:21 +0200
commitdf6e6333237dd1e55571e1e8c61354ae51b26d82 (patch)
treeeb31bc6ac31aa7d244dfb3f5f3ad6c5f8a053bd4 /drivers/net/wireless/rt2x00/rt2x00mmio.c
parentath9k: Advertise multichannel support (diff)
downloadlinux-df6e6333237dd1e55571e1e8c61354ae51b26d82.tar.xz
linux-df6e6333237dd1e55571e1e8c61354ae51b26d82.zip
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>
Diffstat (limited to 'drivers/net/wireless/rt2x00/rt2x00mmio.c')
-rw-r--r--drivers/net/wireless/rt2x00/rt2x00mmio.c8
1 files changed, 3 insertions, 5 deletions
diff --git a/drivers/net/wireless/rt2x00/rt2x00mmio.c b/drivers/net/wireless/rt2x00/rt2x00mmio.c
index 6f236ea180aa..f0178fd4fe5f 100644
--- 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.
*/