In preparation to limit the scope of the list iterator variable to the
traversal loop, use a dedicated pointer to point to the found element
[1].

Link: https://lore.kernel.org/all/CAHk-=wgRr_D8CB-D9Kg-c=EHreAsk5SqXPwr9Y7k9sA6cWXJ6w@mail.gmail.com/ [1]

v1->v2:
- fix NULL ptr dereference in subsystem_open() (Steven Rostedt)
- don't use the iterator in PATCH 3/4 when not necessary (Steven Rostedt)

Jakob Koschel (4):
  tracing: Remove usage of list iterator after the loop body
  tracing: Remove usage of list iterator variable after the loop
  tracing: Replace usage of found with dedicated list iterator variable
  tracing: Remove check of list iterator against head past the loop body

 kernel/trace/ftrace.c               | 20 ++++++++++++--------
 kernel/trace/trace_eprobe.c         | 14 ++++++++------
 kernel/trace/trace_events.c         | 27 +++++++++++++--------------
 kernel/trace/trace_events_hist.c    | 15 +++++++--------
 kernel/trace/trace_events_trigger.c | 24 +++++++++++-------------
 kernel/trace/trace_output.c         | 13 +++++++++----
 6 files changed, 60 insertions(+), 53 deletions(-)


base-commit: 46cf2c613f4b10eb12f749207b0fd2c1bfae3088
--
2.25.1