xhci: use completion event's slot id rather than dig it out of command
authorXenia Ragiadakou <burzalodowa@gmail.com>
Mon, 9 Sep 2013 10:29:50 +0000 (13:29 +0300)
committerSarah Sharp <sarah.a.sharp@linux.intel.com>
Wed, 16 Oct 2013 19:24:28 +0000 (12:24 -0700)
commit20e7acb13ff48fbc884d5918c3697c27de63922a
tree7bb80a06ac376a11a86afff87db4cf4e1bb00262
parent9b3103ac9d19525781c297c4fb1e544e077c8901
xhci: use completion event's slot id rather than dig it out of command

Since the slot id retrieved from the Reset Device TRB matches the slot id in
the command completion event, which is available, there is no need to determine
it again.
This patch removes the uneccessary reassignment to slot id and adds a WARN_ON
in case the two Slot ID fields differ (although according xhci spec rev1.0
they should not differ).

Signed-off-by: Xenia Ragiadakou <burzalodowa@gmail.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
drivers/usb/host/xhci-ring.c