run.sh: Fix wait condition when collecting results.

In case a cpu didn't run any benchmark, don't wait for non-existing
child processes. Otherwise, the expansion of ${pids[$cpu]} is empty,
and we wait for all the children, leading to an error in the next
iteration when ${pids[$cpus]} expands to an actual pid, which has
already completed.

Change-Id: Ic70d0e3ddc39f7dcecf70dbdaaf1b88ffe8e3788

1 files changed, 2 insertions, 0 deletions

diff --git a/run.sh b/run.sh
index d8797ed..2b95c2c 100755
--- a/run.sh
+++ b/run.sh
@@ -245,6 +245,8 @@ done
 echo "Note: Waiting for runs to finish"
 for cpu in ${cpus[@]}
 do
+    # If nothing ran on this cpu, continue
+    [ x"${pids[${cpu}]}" = x ] && continue
     result=0; wait ${pids[$cpu]} || result=$?
     if [ $result != 0 ]; then
 	status=1