From 53ee2663f0df536ccb37d559c4f4c53c4511db7a Mon Sep 17 00:00:00 2001 From: Andy Shevchenko Date: Fri, 17 Mar 2023 17:47:03 +0200 Subject: [PATCH] xhci: mem: Use dma_poll_zalloc() instead of explicit memset() Use dma_poll_zalloc() instead of explicit memset() call in xhci_alloc_stream_ctx(). Note, that dma_alloc_coherent() is always issues zeroed memory chunk. Signed-off-by: Andy Shevchenko Signed-off-by: Mathias Nyman Link: https://lore.kernel.org/r/20230317154715.535523-3-mathias.nyman@linux.intel.com Signed-off-by: Greg Kroah-Hartman --- drivers/usb/host/xhci-mem.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/usb/host/xhci-mem.c b/drivers/usb/host/xhci-mem.c index c385513..4ffa649 100644 --- a/drivers/usb/host/xhci-mem.c +++ b/drivers/usb/host/xhci-mem.c @@ -575,10 +575,10 @@ static struct xhci_stream_ctx *xhci_alloc_stream_ctx(struct xhci_hcd *xhci, return dma_alloc_coherent(dev, size, dma, mem_flags); else if (size <= SMALL_STREAM_ARRAY_SIZE) - return dma_pool_alloc(xhci->small_streams_pool, + return dma_pool_zalloc(xhci->small_streams_pool, mem_flags, dma); else - return dma_pool_alloc(xhci->medium_streams_pool, + return dma_pool_zalloc(xhci->medium_streams_pool, mem_flags, dma); } @@ -643,8 +643,6 @@ struct xhci_stream_info *xhci_alloc_stream_info(struct xhci_hcd *xhci, mem_flags); if (!stream_info->stream_ctx_array) goto cleanup_ring_array; - memset(stream_info->stream_ctx_array, 0, - sizeof(struct xhci_stream_ctx)*num_stream_ctxs); /* Allocate everything needed to free the stream rings later */ stream_info->free_streams_command = -- 2.7.4