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USB: EHCI: don't allocate hardware periodic table atomically by default

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ehci_mem_init() is executed one time during ehci_init() and by default
all memory allocations but ehci->periodic are done not atomically,
GFP_KERNEL is passed as flags parameter.

Do similar allocation for ehci->periodic and free some space in
coherent atomic DMA pool by default.

Signed-off-by: Vladimir Zapolskiy <vladimir_zapolskiy@mentor.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Vladimir Zapolskiy 2014-07-03 17:53:30 +03:00 committed by Greg Kroah-Hartman
parent 64024d9f2a
commit 47c6ae7cdc
1 changed files with 1 additions and 1 deletions
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2
drivers/usb/host/ehci-mem.c
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@ -209,7 +209,7 @@ static int ehci_mem_init (struct ehci_hcd *ehci, gfp_t flags)
ehci->periodic = (__le32 *)
dma_alloc_coherent (ehci_to_hcd(ehci)->self.controller,
ehci->periodic_size * sizeof(__le32),
&ehci->periodic_dma, 0);
&ehci->periodic_dma, flags);
if (ehci->periodic == NULL) {
goto fail;
}