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| author | Steven Rostedt (Red Hat) <rostedt@goodmis.org> | 2014-06-10 13:53:50 -0400 |
|---|---|---|
| committer | Steven Rostedt <rostedt@goodmis.org> | 2014-06-10 13:53:50 -0400 |
| commit | da9c3413a27be5ba6f996e90495c836dd30b8841 (patch) | |
| tree | a320d4d4318c6a0b8a4646e46e15059d1336b8c6 | |
| parent | f0b70cc48cc282cb326a4d71b3d1dda7d8fafd2a (diff) | |
| download | linux-da9c3413a27be5ba6f996e90495c836dd30b8841.tar.gz linux-da9c3413a27be5ba6f996e90495c836dd30b8841.tar.bz2 linux-da9c3413a27be5ba6f996e90495c836dd30b8841.zip | |
tracing: Fix check of ftrace_trace_arrays list_empty() check
The check that tests if ftrace_trace_arrays is empty in
top_trace_array(), uses the .prev pointer:
if (list_empty(ftrace_trace_arrays.prev))
instead of testing the variable itself:
if (list_empty(&ftrace_trace_arrays))
Although it is technically correct, it is awkward and confusing.
Use the proper method.
Link: http://lkml.kernel.org/r/87oay1bas8.fsf@sejong.aot.lge.com
Reported-by: Namhyung Kim <namhyung@gmail.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
| -rw-r--r-- | kernel/trace/trace.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/trace/trace.h b/kernel/trace/trace.h index 9e82551dd566..9258f5a815db 100644 --- a/kernel/trace/trace.h +++ b/kernel/trace/trace.h @@ -252,7 +252,7 @@ static inline struct trace_array *top_trace_array(void) { struct trace_array *tr; - if (list_empty(ftrace_trace_arrays.prev)) + if (list_empty(&ftrace_trace_arrays)) return NULL; tr = list_entry(ftrace_trace_arrays.prev, |