tree b0ae37b6ff3814566047f4cb8e5cac1d0738fc12
parent 5b7a96220900e3c3f6fb53908eb4602cda959376
author Masami Hiramatsu <mhiramat@kernel.org> 1552537850 +0900
committer Steven Rostedt (VMware) <rostedt@goodmis.org> 1552607661 -0400

tracing/probe: Verify alloc_trace_*probe() result

Since alloc_trace_*probe() returns -EINVAL only if !event && !group,
it should not happen in trace_*probe_create(). If we catch that case
there is a bug. So use WARN_ON_ONCE() instead of pr_info().

Link: http://lkml.kernel.org/r/155253785078.14922.16902223633734601469.stgit@devnote2

Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>