Messages in this thread Patch in this message | | | Date | Wed, 14 Jan 2009 20:57:53 -0500 (EST) | From | Steven Rostedt <> | Subject | [PATCH] tracing/ftrace: add missing unlock in register_stat_tracer() |
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Ingo,
The following patch is in:
git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-2.6-trace.git
branch: tip/devel
Li Zefan (1): tracing/ftrace: add missing unlock in register_stat_tracer()
---- kernel/trace/trace_stat.c | 4 +++- 1 files changed, 3 insertions(+), 1 deletions(-) --------------------------- commit 6af81ac4701bf80dde4b723f28a777daefdf512c Author: Li Zefan <lizf@cn.fujitsu.com> Date: Thu Jan 15 09:30:52 2009 +0800
tracing/ftrace: add missing unlock in register_stat_tracer() We should unlock all_stat_sessions_mutex before returning failure. Signed-off-by: Li Zefan <lizf@cn.fujitsu.com> Signed-off-by: Steven Rostedt <srostedt@redhat.com>
diff --git a/kernel/trace/trace_stat.c b/kernel/trace/trace_stat.c index cb29282..8669f3c 100644 --- a/kernel/trace/trace_stat.c +++ b/kernel/trace/trace_stat.c @@ -73,8 +73,10 @@ int register_stat_tracer(struct tracer_stat *trace) /* Already registered? */ mutex_lock(&all_stat_sessions_mutex); list_for_each_entry_safe(node, tmp, &all_stat_sessions, session_list) { - if (node->ts == trace) + if (node->ts == trace) { + mutex_unlock(all_stat_sessions_mutex); return -EINVAL; + } } mutex_unlock(&all_stat_sessions_mutex);
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