usb: cdns3: delete repeated clear operations

dma_alloc_coherent already zeroes out memory, so memset is not needed.

Signed-off-by: Wang Qing <wangqing@vivo.com>
Reviewed-by: Pawel Laszczak <pawell@cadence.com>
Acked-by: Pawel Laszczak <pawell@cadence.com>
Signed-off-by: Peter Chen <peter.chen@kernel.org>

diff --git a/drivers/usb/cdns3/cdnsp-mem.c b/drivers/usb/cdns3/cdnsp-mem.c
index 7a84e928710e41d5d6af21178d5a999ff1297218..1d1b9a429d4c0af999560cdfb6692f263690bfe0 100644 (file)
--- a/drivers/usb/cdns3/cdnsp-mem.c
+++ b/drivers/usb/cdns3/cdnsp-mem.c
@@ -1231,7 +1231,6 @@ int cdnsp_mem_init(struct cdnsp_device *pdev)
        if (!pdev->dcbaa)
                return -ENOMEM;
 
-       memset(pdev->dcbaa, 0, sizeof(*pdev->dcbaa));
        pdev->dcbaa->dma = dma;
 
        cdnsp_write_64(dma, &pdev->op_regs->dcbaa_ptr);