we prefer to use dma_zalloc_coherent rather than dam_alloc_coherent+memset Signed-off-by: zhong jiang <zhongjiang@huawei.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
we prefer to use dma_zalloc_coherent rather than dam_alloc_coherent+memset Signed-off-by: zhong jiang <zhongjiang@huawei.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>