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USB: OHCI: don't allocate HCCA atomically 

OHCI HCCA memory region is allocated from atomic DMA pool one time
during usb_add_hcd() and deallocated by usb_remove_hcd().

Do non-atomic allocation of OHCI HCCA 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 21:37:41 +03:00 committed by Greg Kroah-Hartman
parent f589b3e040
commit 4428524d8d
1 changed files with 1 additions and 1 deletions
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2
drivers/usb/host/ohci-hcd.c
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@ -559,7 +559,7 @@ static int ohci_init (struct ohci_hcd *ohci)
return 0; return 0;
ohci->hcca = dma_alloc_coherent (hcd->self.controller, ohci->hcca = dma_alloc_coherent (hcd->self.controller,
sizeof *ohci->hcca, &ohci->hcca_dma, 0); sizeof(*ohci->hcca), &ohci->hcca_dma, GFP_KERNEL);
if (!ohci->hcca) if (!ohci->hcca)
return -ENOMEM; return -ENOMEM;