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xhci: mem: Use dma_poll_zalloc() instead of explicit memset()

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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 <andriy.shevchenko@linux.intel.com>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Link: https://lore.kernel.org/r/20230317154715.535523-3-mathias.nyman@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Andy Shevchenko 2023-03-17 17:47:03 +02:00 committed by Greg Kroah-Hartman
parent 347284984f
commit 53ee2663f0
1 changed files with 2 additions and 4 deletions
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6
drivers/usb/host/xhci-mem.c
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@ -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 =