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USB: UHCI: don't allocate frame list atomically 

uhci_start() is executed one time during usb_add_hcd() call and by
default UHCI frame list is allocated from atomic DMA pool.

Do non-atomic allocation of uhci->frame and free some space in
coherent atomic DMA pool.

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 21:37:42 +03:00 committed by Greg Kroah-Hartman
parent 47c6ae7cdc
commit f589b3e040
1 changed files with 1 additions and 1 deletions
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2
drivers/usb/host/uhci-hcd.c
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@ -591,7 +591,7 @@ static int uhci_start(struct usb_hcd *hcd)
uhci->frame = dma_alloc_coherent(uhci_dev(uhci), uhci->frame = dma_alloc_coherent(uhci_dev(uhci),
UHCI_NUMFRAMES * sizeof(*uhci->frame), UHCI_NUMFRAMES * sizeof(*uhci->frame),
&uhci->frame_dma_handle, 0); &uhci->frame_dma_handle, GFP_KERNEL);
if (!uhci->frame) { if (!uhci->frame) {
dev_err(uhci_dev(uhci), dev_err(uhci_dev(uhci),
"unable to allocate consistent memory for frame list\n"); "unable to allocate consistent memory for frame list\n");