From: Mathias Nyman <mathias.nyman@linux.intel.com>
Date: Tue, 10 Jun 2014 08:27:41 +0000 (+0300)
Subject: xhci: Fix sleeping with IRQs disabled in xhci_stop_device()
X-Git-Tag: omap-for-v3.16/fixes-rc4~77^2~5
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=be3de32107091c266b00a48265fe7e06233af4f0;p=pandora-kernel.git

xhci: Fix sleeping with IRQs disabled in xhci_stop_device()

xhci_stop_device() allocates and issues stop commands for each active endpoint.
This is done with spinlock held and interrupt disabled so we can't sleep during
memory allocation. Use GFP_NOWAIT instead

Regression from commit ddba5cd0aeff5bbed92ebdf4b1223300b0541e78
"xhci: Use command structures when queuing commands on the command ring"
for 3.16-rc1

Fixes: ddba5cd0aeff ("xhci: Use command structures when queuing commands")
Reported-by: Dan Williams <dan.j.williams@intel.com>
Reported-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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