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tracing: Use free_percpu instead of kfree

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In the event->profile_enable() failure path, we release the per cpu
buffers using kfree which is wrong because they are per cpu pointers.
Although free_percpu only wraps kfree for now, that may change in the
future so lets use the correct way.

Reported-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Li Zefan <lizf@cn.fujitsu.com>
This commit is contained in:
Frederic Weisbecker 2009-10-03 15:08:54 +02:00
parent fe8e5b5a60
commit 75fb4090b3
1 changed files with 2 additions and 2 deletions
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4
kernel/trace/trace_event_profile.c
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@ -53,8 +53,8 @@ static int ftrace_profile_enable_event(struct ftrace_event_call *event)
fail_buf_nmi:
if (!total_profile_count) {
kfree(trace_profile_buf_nmi);
kfree(trace_profile_buf);
free_percpu(trace_profile_buf_nmi);
free_percpu(trace_profile_buf);
trace_profile_buf_nmi = NULL;
trace_profile_buf = NULL;
}