From: Vladimir Zapolskiy <vladimir_zapolskiy@mentor.com>
Date: Thu, 3 Jul 2014 14:53:30 +0000 (+0300)
Subject: USB: EHCI: don't allocate hardware periodic table atomically by default
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=47c6ae7cdc4dc0c72686cca1819c7368bef2e1bf;p=linux-beck.git

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>
---

diff --git a/drivers/usb/host/ehci-mem.c b/drivers/usb/host/ehci-mem.c
index c0fb6a8ae6a3..b6205fac3567 100644
--- a/drivers/usb/host/ehci-mem.c
+++ b/drivers/usb/host/ehci-mem.c
@@ -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;
 	}