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tracing: instance_rmdir() leaks ftrace_event_file->filter 

instance_rmdir() path destroys the event files but forgets to free
file->filter. Change remove_event_file_dir() to free_event_filter().

Link: http://lkml.kernel.org/p/20140711190638.GA19517@redhat.com

Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Cc: Tom Zanussi <tom.zanussi@linux.intel.com>
Cc: "zhangwei(Jovi)" <jovi.zhangwei@huawei.com>
Cc: stable@vger.kernel.org # 3.11+
Fixes: f6a84bdc75 "tracing: Introduce remove_event_file_dir()"
Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
This commit is contained in:
Oleg Nesterov 2014-07-11 21:06:38 +02:00 committed by Steven Rostedt
parent 1795cd9b3a
commit 2448e3493c
1 changed files with 1 additions and 0 deletions
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kernel/trace/trace_events.c
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@ -470,6 +470,7 @@ static void remove_event_file_dir(struct ftrace_event_file *file)
list_del(&file->list);
remove_subsystem(file->system);
free_event_filter(file->filter);
kmem_cache_free(file_cachep, file);
}