usb: xhci: avoid unnecessary calculation

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No need to calculate remainder and length_field, if there is
no data phase of a control transfer.

Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Lu Baolu 2017-01-23 14:20:01 +02:00 • committed by Greg Kroah-Hartman

parent 80c479622f

commit fb79a6da45

1 changed files with 10 additions and 10 deletions

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drivers/usb/host/xhci-ring.c

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