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authorFrederic Weisbecker <fweisbec@gmail.com>2009-10-03 13:08:54 (GMT)
committerFrederic Weisbecker <fweisbec@gmail.com>2009-10-05 08:57:56 (GMT)
commit75fb4090b39a3d7bf9ac77a28665c991ec5eaadc (patch)
tree127abba2cc4382cd7f70e4867184e5af0b275748 /kernel
parentfe8e5b5a60f8427940d33b205e127aecfb0bca10 (diff)
downloadlinux-75fb4090b39a3d7bf9ac77a28665c991ec5eaadc.tar.xz
tracing: Use free_percpu instead of kfree
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>
Diffstat (limited to 'kernel')
-rw-r--r--kernel/trace/trace_event_profile.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/kernel/trace/trace_event_profile.c b/kernel/trace/trace_event_profile.c
index e52784b..8d5c171 100644
--- a/kernel/trace/trace_event_profile.c
+++ b/kernel/trace/trace_event_profile.c
@@ -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;
}