From: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Date: Wed, 9 Dec 2009 23:59:03 +0000 (-0800)
Subject: USB: xhci: Allow allocation of commands without input contexts.
X-Git-Tag: v2.6.34-rc1~215^2~196
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=a1d78c16bd31a715785e21967ac6110b386a3c1f;p=pandora-kernel.git

USB: xhci: Allow allocation of commands without input contexts.

The xhci_command structure is the basic structure for issuing commands to
the xHCI hardware.  It contains a struct completion (so that the issuing
function can wait on the command), command status, and a input context
that is used to pass information to the hardware.  Not all commands need
the input context, so make it optional to allocate.  Allow
xhci_free_container_ctx() to be passed a NULL input context, to make
freeing the xhci_command structure simple.

Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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