From: Felipe Balbi <balbi@ti.com>
Date: Mon, 10 Nov 2014 20:39:44 +0000 (-0600)
Subject: usb: dwc3: ep0: fix for dead code
X-Git-Tag: omap-for-v3.19/fixes-for-merge-window~57^2~7^2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=520fe7633692181bb6d1560d655fbdfbb7c05aaa;p=pandora-kernel.git

usb: dwc3: ep0: fix for dead code

commit 6856d30 (usb: dwc3: ep0: return early
on NULL requests) tried to fix a minor corner
case where we could dereference a NULL pointer
but it also ended up introducing some dead code.

Unfortunately, that dead code, if reached, could
end up starving the endpoint request list because
a request would never be given back when it should.

Fix this by moving the check for empty request list
before its first use.

Reported-by: Dave Jones <davej@redhat.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
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