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drivers/iwlwifi: use dma_zalloc_coherent() for DMA allocation

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Replace dma_alloc_coherent()+memset() with the new dma_zalloc_coherent()

Signed-off-by: Djalal Harouni <tixxdz@opendz.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Djalal Harouni 2011-12-21 01:21:47 +01:00 committed by John W. Linville
parent 3dda07b6f9
commit 84c816dad5
1 changed files with 4 additions and 6 deletions
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10
drivers/net/wireless/iwlwifi/iwl-trans-pcie.c
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@ -88,18 +88,16 @@ static int iwl_trans_rx_alloc(struct iwl_trans *trans)
return -EINVAL;
/* Allocate the circular buffer of Read Buffer Descriptors (RBDs) */
rxq->bd = dma_alloc_coherent(dev, sizeof(__le32) * RX_QUEUE_SIZE,
&rxq->bd_dma, GFP_KERNEL);
rxq->bd = dma_zalloc_coherent(dev, sizeof(__le32) * RX_QUEUE_SIZE,
&rxq->bd_dma, GFP_KERNEL);
if (!rxq->bd)
goto err_bd;
memset(rxq->bd, 0, sizeof(__le32) * RX_QUEUE_SIZE);
/*Allocate the driver's pointer to receive buffer status */
rxq->rb_stts = dma_alloc_coherent(dev, sizeof(*rxq->rb_stts),
&rxq->rb_stts_dma, GFP_KERNEL);
rxq->rb_stts = dma_zalloc_coherent(dev, sizeof(*rxq->rb_stts),
&rxq->rb_stts_dma, GFP_KERNEL);
if (!rxq->rb_stts)
goto err_rb_stts;
memset(rxq->rb_stts, 0, sizeof(*rxq->rb_stts));
return 0;