From: Felipe Balbi <balbi@ti.com>
Date: Sat, 27 Aug 2011 12:10:09 +0000 (+0300)
Subject: usb: dwc3: gadget: set request dma to invalid when unmapping
X-Git-Tag: v3.2-rc1~183^2~148^2~39
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=f198ead21bcb7b03d7bb2cba7ba0f5ad615a3862;p=pandora-kernel.git

usb: dwc3: gadget: set request dma to invalid when unmapping

if we don't set DMA address to invalid when unmapping,
we might fall in a situation where request buffer
can't be mapped to DMA again.

Signed-off-by: Felipe Balbi <balbi@ti.com>
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