[PATCH 2/2] scripts: return errors for CI

[Henning Schild <henning.schild@siemens.com>]

I received mail from Jenkins looking like that:

> Test: FAIL
...
> Test: FAIL
...
> POST BUILD TASK : SUCCESS

This patch actually collects the number of failing qemus and returns it,
so the caller can react on it.

Signed-off-by: Henning Schild <henning.schild@siemens.com>
---
 scripts/vm_smoke_test | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/scripts/vm_smoke_test b/scripts/vm_smoke_test
index 3bcfd5a..f1bd411 100755
--- a/scripts/vm_smoke_test
+++ b/scripts/vm_smoke_test
@@ -6,6 +6,8 @@
 CONSOLE_OUTPUT=/tmp/isar_console
 PID_FILE=/tmp/qemu.pid
 
+ret=0
+
 check_output() {
     str=$(tail -1 $CONSOLE_OUTPUT)
 
@@ -13,6 +15,7 @@ check_output() {
         echo "Test: PASSED"
     else
         echo "Test: FAIL"
+	ret=`expr $ret + 1`
     fi
 }
 
@@ -48,3 +51,5 @@ run_test amd64 stretch
 # i386 machine
 run_test i386 jessie
 run_test i386 stretch
+
+exit $ret
-- 
2.16.1