[tip:perf/kprobes] arm/kprobes: Fix kretprobe test to check correct counter

From: tip-bot for Masami Hiramatsu
Date: Tue Nov 07 2017 - 06:22:42 EST


Commit-ID: 4650209b166789182657c8eb0612cecd5b54d591
Gitweb: https://git.kernel.org/tip/4650209b166789182657c8eb0612cecd5b54d591
Author: Masami Hiramatsu <mhiramat@xxxxxxxxxx>
AuthorDate: Sat, 4 Nov 2017 13:30:52 +0900
Committer: Ingo Molnar <mingo@xxxxxxxxxx>
CommitDate: Tue, 7 Nov 2017 11:25:14 +0100

arm/kprobes: Fix kretprobe test to check correct counter

test_kretprobe() uses jprobe_func_called at the
last test, but it must check kretprobe_handler_called.

Signed-off-by: Masami Hiramatsu <mhiramat@xxxxxxxxxx>
Cc: Arnd Bergmann <arnd@xxxxxxxx>
Cc: Jon Medhurst <tixy@xxxxxxxxxx>
Cc: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
Cc: Mark Brown <broonie@xxxxxxxxxx>
Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Cc: Russell King <linux@xxxxxxxxxxxxxxx>
Cc: Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx>
Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Cc: Wang Nan <wangnan0@xxxxxxxxxx>
Cc: linux-arm-kernel@xxxxxxxxxxxxxxxxxxx
Link: 150976985182.2012.15495311380682779381.stgit@devbox">http://lkml.kernel.org/r/150976985182.2012.15495311380682779381.stgit@devbox
Signed-off-by: Ingo Molnar <mingo@xxxxxxxxxx>
---
arch/arm/probes/kprobes/test-core.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/probes/kprobes/test-core.c b/arch/arm/probes/kprobes/test-core.c
index 1c98a87..9c3ceba 100644
--- a/arch/arm/probes/kprobes/test-core.c
+++ b/arch/arm/probes/kprobes/test-core.c
@@ -451,7 +451,7 @@ static int test_kretprobe(long (*func)(long, long))
}
if (!call_test_func(func, false))
return -EINVAL;
- if (jprobe_func_called == test_func_instance) {
+ if (kretprobe_handler_called == test_func_instance) {
pr_err("FAIL: kretprobe called after unregistering\n");
return -EINVAL;
}