linux-kernel - [PATCH] tracing: skip printing "OK" if failed to disable event

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Message-Id: <1346051625-25231-1-git-send-email-yuanhan.liu@linux.intel.com>
Date:	Mon, 27 Aug 2012 15:13:45 +0800
From:	Yuanhan Liu <yuanhan.liu@...ux.intel.com>
To:	linux-kernel@...r.kernel.org
Cc:	rostedt@...dmis.org, Yuanhan Liu <yuanhan.liu@...ux.intel.com>
Subject: [PATCH] tracing: skip printing "OK" if failed to disable event

No acutal case found. But logically, we should skip "OK" in case any
error met.

Signed-off-by: Yuanhan Liu <yuanhan.liu@...ux.intel.com>
---
 kernel/trace/trace_events.c |    4 +++-
 1 files changed, 3 insertions(+), 1 deletions(-)

diff --git a/kernel/trace/trace_events.c b/kernel/trace/trace_events.c
index 29111da..9894162 100644
--- a/kernel/trace/trace_events.c
+++ b/kernel/trace/trace_events.c
@@ -1646,9 +1646,11 @@ static __init void event_trace_self_tests(void)
 		event_test_stuff();
 
 		ret = __ftrace_set_clr_event(NULL, system->name, NULL, 0);
-		if (WARN_ON_ONCE(ret))
+		if (WARN_ON_ONCE(ret)) {
 			pr_warning("error disabling system %s\n",
 				   system->name);
+			continue;
+		}
 
 		pr_cont("OK\n");
 	}
-- 
1.7.7.6

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