From: Neil Zhang <zhangwm@marvell.com>
Date: Tue, 10 Jul 2012 02:07:03 +0000 (+0800)
Subject: usb: gadget: mv_udc: avoid sleeping on spinlock
X-Git-Tag: omap-for-v3.7-rc1/fixes-cpufreq-signed~73^2~141^2~61
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=0344606bec0f3325ba9c1d4de74a5dd98911916d;p=pandora-kernel.git

usb: gadget: mv_udc: avoid sleeping on spinlock

build_dtd() can be called when hold a spinlock, but GFP_KERNEL may cause
dma_pool_alloc() sleep, So we need use GFP_ATOMIC instead of GFP_KERNEL.
But using GFP_ATOMIC may cause failure when allocating memory, add error
handler to handle it.

Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru>
Signed-off-by: Neil Zhang <zhangwm@marvell.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
---

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