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usb: host: ehci: Make use of dma_pool_zalloc() instead of dma_pool_alloc/memset()

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Replacing dma_pool_alloc/memset() with dma_pool_zalloc()
to simplify the code.

Signed-off-by: Cai Huoqing <caihuoqing@baidu.com>
Link: https://lore.kernel.org/r/20211018131645.434-1-caihuoqing@baidu.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Cai Huoqing 2021-10-18 21:16:44 +08:00 committed by Greg Kroah-Hartman
parent 81dddf72ac
commit 6a47856145
1 changed files with 1 additions and 2 deletions
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3
drivers/usb/host/ehci-mem.c
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@ -73,10 +73,9 @@ static struct ehci_qh *ehci_qh_alloc (struct ehci_hcd *ehci, gfp_t flags)
if (!qh)
goto done;
qh->hw = (struct ehci_qh_hw *)
dma_pool_alloc(ehci->qh_pool, flags, &dma);
dma_pool_zalloc(ehci->qh_pool, flags, &dma);
if (!qh->hw)
goto fail;
memset(qh->hw, 0, sizeof *qh->hw);
qh->qh_dma = dma;
// INIT_LIST_HEAD (&qh->qh_list);
INIT_LIST_HEAD (&qh->qtd_list);