linux-kernel - [PATCH 3/3] trace: fix sparce warning: attribute function with __acquires/_

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Date:	Tue, 10 Feb 2009 19:44:45 +0100
From:	Hannes Eder <hannes@...neseder.net>
To:	Ingo Molnar <mingo@...e.hu>
Cc:	kernel-janitors@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH 3/3] trace: fix sparce warning: attribute function with
	__acquires/__releases

Fix this sparse warning:
  kernel/trace/trace.c:458:9: warning: context imbalance in 'register_tracer' - unexpected unlock

Signed-off-by: Hannes Eder <hannes@...neseder.net>
---
 kernel/trace/trace.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c
index 16b8be4..5762fa5 100644
--- a/kernel/trace/trace.c
+++ b/kernel/trace/trace.c
@@ -439,6 +439,8 @@ update_max_tr_single(struct trace_array *tr, struct task_struct *tsk, int cpu)
  * Register a new plugin tracer.
  */
 int register_tracer(struct tracer *type)
+__releases(kernel_lock)
+__acquires(kernel_lock)
 {
 	struct tracer *t;
 	int len;

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