Commit 47c6ae7c authored Jul 03, 2014 by Vladimir Zapolskiy Committed by Greg Kroah-Hartman Jul 09, 2014

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



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>

parent 64024d9f

drivers/usb/host/ehci-mem.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -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;
		}