tree a320d4d4318c6a0b8a4646e46e15059d1336b8c6
parent f0b70cc48cc282cb326a4d71b3d1dda7d8fafd2a
author Steven Rostedt (Red Hat) <rostedt@goodmis.org> 1402422830 -0400
committer Steven Rostedt <rostedt@goodmis.org> 1402422830 -0400

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>