ret is signed however is printed as unsigned fix the same.
If printed as a negative number the result is easier to read.
No functional change.
Signed-off-by: NShubhrajyoti Datta <shubhrajyoti.datta@xilinx.com>
Acked-by: NAdrian Hunter <adrian.hunter@intel.com>
Signed-off-by: NUlf Hansson <ulf.hansson@linaro.org>