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usb: host: Remove call to memset after dma_alloc_coherent

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In commit 518a2f1925
("dma-mapping: zero memory returned from dma_alloc_*"),
dma_alloc_coherent has already zeroed the memory.
So memset is not needed.

Signed-off-by: Fuqian Huang <huangfq.daxian@gmail.com>
Link: https://lore.kernel.org/r/20190715032010.7258-1-huangfq.daxian@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Fuqian Huang
2019-07-15 11:20:10 +08:00
committed by Greg Kroah-Hartman
parent 6443c671d5
commit 3114bc89c0
2 changed files with 0 additions and 2 deletions
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1
drivers/usb/host/xhci-dbgcap.c
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@@ -22,7 +22,6 @@ dbc_dma_alloc_coherent(struct xhci_hcd *xhci, size_t size,
vaddr = dma_alloc_coherent(xhci_to_hcd(xhci)->self.sysdev,
size, dma_handle, flags);
memset(vaddr, 0, size);
return vaddr;
}