From: Florian Wolter <wolly84@web.de>
Date: Wed, 14 Aug 2013 08:33:16 +0000 (+0200)
Subject: xhci: Fix race between ep halt and URB cancellation
X-Git-Tag: v3.2.52~8
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=47fa3c9b8352d4f403118b01f8a97fff1353c30b;p=pandora-kernel.git

xhci: Fix race between ep halt and URB cancellation

commit 526867c3ca0caa2e3e846cb993b0f961c33c2abb upstream.

The halted state of a endpoint cannot be cleared over CLEAR_HALT from a
user process, because the stopped_td variable was overwritten in the
handle_stopped_endpoint() function. So the xhci_endpoint_reset() function will
refuse the reset and communication with device can not run over this endpoint.
https://bugzilla.kernel.org/show_bug.cgi?id=60699

Signed-off-by: Florian Wolter <wolly84@web.de>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---

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