[B][SRU][PATCH 1/1] selftests/ftrace: Fix bash specific "==" operator

[Po-Hsu Lin]

From: "Masami Hiramatsu (Google)" <mhiramat at kernel.org>

BugLink: https://bugs.launchpad.net/bugs/2006453

Since commit a1d6cd88c897 ("selftests/ftrace: event_triggers: wait
longer for test_event_enable") introduced bash specific "=="
comparation operator, that test will fail when we run it on a
posix-shell. `checkbashisms` warned it as below.

possible bashism in ftrace/func_event_triggers.tc line 45 (should be 'b = a'):
        if [ "$e" == $val ]; then

This replaces it with "=".

Fixes: a1d6cd88c897 ("selftests/ftrace: event_triggers: wait longer for test_event_enable")
Signed-off-by: Masami Hiramatsu (Google) <mhiramat at kernel.org>
Reviewed-by: Steven Rostedt (Google) <rostedt at goodmis.org>
Signed-off-by: Shuah Khan <skhan at linuxfoundation.org>
(cherry picked from commit 1e6b485c922fbedf41d5a9f4e6449c5aeb923a32)
Signed-off-by: Po-Hsu Lin <po-hsu.lin at canonical.com>
---
 tools/testing/selftests/ftrace/test.d/ftrace/func_event_triggers.tc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/testing/selftests/ftrace/test.d/ftrace/func_event_triggers.tc b/tools/testing/selftests/ftrace/test.d/ftrace/func_event_triggers.tc
index 79d614f..d620223a 100644
--- a/tools/testing/selftests/ftrace/test.d/ftrace/func_event_triggers.tc
+++ b/tools/testing/selftests/ftrace/test.d/ftrace/func_event_triggers.tc
@@ -49,7 +49,7 @@ test_event_enabled() {
 
     while [ $check_times -ne 0 ]; do
 	e=`cat $EVENT_ENABLE`
-	if [ "$e" == $val ]; then
+	if [ "$e" = $val ]; then
 	    return 0
 	fi
 	sleep $SLEEP_TIME
-- 
2.7.4