net/udpgso_bench.sh test fails on error

Ensure that failure on any individual test results in an overall
failure of the test script.

Signed-off-by: Fred Klassen <fklassen@appneta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

tools/testing/selftests/net/udpgso_bench.sh

@@ -3,6 +3,10 @@
 #
 # Run a series of udpgso benchmarks
 
+GREEN='\033[0;92m'
+RED='\033[0;31m'
+NC='\033[0m' # No Color
+
 wake_children() {
 	local -r jobs="$(jobs -p)"
 
@@ -29,60 +33,89 @@ run_in_netns() {
 
 run_udp() {
 	local -r args=$@
+	local errors=0
 
 	echo "udp"
 	run_in_netns ${args}
+	errors=$(( $errors + $? ))
 
 	echo "udp gso"
 	run_in_netns ${args} -S 0
+	errors=$(( $errors + $? ))
 
 	echo "udp gso zerocopy"
 	run_in_netns ${args} -S 0 -z
+	errors=$(( $errors + $? ))
 
 	echo "udp gso timestamp"
 	run_in_netns ${args} -S 0 -T
+	errors=$(( $errors + $? ))
 
 	echo "udp gso zerocopy audit"
 	run_in_netns ${args} -S 0 -z -a
+	errors=$(( $errors + $? ))
 
 	echo "udp gso timestamp audit"
 	run_in_netns ${args} -S 0 -T -a
+	errors=$(( $errors + $? ))
 
 	echo "udp gso zerocopy timestamp audit"
 	run_in_netns ${args} -S 0 -T -z -a
+	errors=$(( $errors + $? ))
+
+	return $errors
 }
 
 run_tcp() {
 	local -r args=$@
+	local errors=0
 
 	echo "tcp"
 	run_in_netns ${args} -t
+	errors=$(( $errors + $? ))
 
 	echo "tcp zerocopy"
 	run_in_netns ${args} -t -z
+	errors=$(( $errors + $? ))
 
 	# excluding for now because test fails intermittently
 	# add -P option to include poll() to reduce possibility of lost messages
 	#echo "tcp zerocopy audit"
 	#run_in_netns ${args} -t -z -P -a
+	#errors=$(( $errors + $? ))
+
+	return $errors
 }
 
 run_all() {
 	local -r core_args="-l 3"
 	local -r ipv4_args="${core_args} -4 -D 127.0.0.1"
 	local -r ipv6_args="${core_args} -6 -D ::1"
+	local errors=0
 
 	echo "ipv4"
 	run_tcp "${ipv4_args}"
+	errors=$(( $errors + $? ))
 	run_udp "${ipv4_args}"
+	errors=$(( $errors + $? ))
 
 	echo "ipv6"
 	run_tcp "${ipv4_args}"
+	errors=$(( $errors + $? ))
 	run_udp "${ipv6_args}"
+	errors=$(( $errors + $? ))
+
+	return $errors
 }
 
 if [[ $# -eq 0 ]]; then
 	run_all
+	if [ $? -ne 0 ]; then
+		echo -e "$(basename $0): ${RED}FAIL${NC}"
+		exit 1
+	fi
+
+	echo -e "$(basename $0): ${GREEN}PASS${NC}"
 elif [[ $1 == "__subprocess" ]]; then
 	shift
 	run_one $@