usb: host: fotg210: Make use of dma_pool_zalloc() instead of dma_pool_alloc/memset()

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/20211018131709.487-1-caihuoqing@baidu.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/usb/host/fotg210-hcd.c b/drivers/usb/host/fotg210-hcd.c
index 296452625488b1dac2745e6f1f7200538fd5abd6..b590995a6b3e932ebe263a1465be6fa62648259e 100644 (file)
--- a/drivers/usb/host/fotg210-hcd.c
+++ b/drivers/usb/host/fotg210-hcd.c
@@ -1859,10 +1859,9 @@ static struct fotg210_qh *fotg210_qh_alloc(struct fotg210_hcd *fotg210,
        if (!qh)
                goto done;
        qh->hw = (struct fotg210_qh_hw *)
-               dma_pool_alloc(fotg210->qh_pool, flags, &dma);
+               dma_pool_zalloc(fotg210->qh_pool, flags, &dma);
        if (!qh->hw)
                goto fail;
-       memset(qh->hw, 0, sizeof(*qh->hw));
        qh->qh_dma = dma;
        INIT_LIST_HEAD(&qh->qtd_list);