tools/lib/lockdep: Hide liblockdep output from test results

This would prevent the liblockdep error messages from getting
mixed in with the test result output.

Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: a.p.zijlstra@chello.nl
Cc: ben@decadent.org.uk
Link: http://lkml.kernel.org/r/20170525130005.5947-22-alexander.levin@verizon.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>

diff --git a/tools/lib/lockdep/run_tests.sh b/tools/lib/lockdep/run_tests.sh
index 3fd297bd5fcb4962fc18bfafc895f961e9472274..f9b94098fc98e118c4d36e8096c3b2cd8dd72778 100755 (executable)
--- a/tools/lib/lockdep/run_tests.sh
+++ b/tools/lib/lockdep/run_tests.sh
@@ -6,7 +6,7 @@ for i in `ls tests/*.c`; do
        testname=$(basename "$i" .c)
        gcc -o tests/$testname -pthread $i liblockdep.a -Iinclude -D__USE_LIBLOCKDEP &> /dev/null
        echo -ne "$testname... "
-       if [ $(timeout 1 ./tests/$testname | wc -l) -gt 0 ]; then
+       if [ $(timeout 1 ./tests/$testname 2>&1 | wc -l) -gt 0 ]; then
                echo "PASSED!"
        else
                echo "FAILED!"
@@ -20,7 +20,7 @@ for i in `ls tests/*.c`; do
        testname=$(basename "$i" .c)
        gcc -o tests/$testname -pthread -Iinclude $i &> /dev/null
        echo -ne "(PRELOAD) $testname... "
-       if [ $(timeout 1 ./lockdep ./tests/$testname | wc -l) -gt 0 ]; then
+       if [ $(timeout 1 ./lockdep ./tests/$testname 2>&1 | wc -l) -gt 0 ]; then
                echo "PASSED!"
        else
                echo "FAILED!"