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tracing/probe: Verify alloc_trace_*probe() result
authorMasami Hiramatsu <mhiramat@kernel.org>
Thu, 14 Mar 2019 04:30:50 +0000 (13:30 +0900)
committerSteven Rostedt (VMware) <rostedt@goodmis.org>
Thu, 14 Mar 2019 23:54:21 +0000 (19:54 -0400)
commita039480e9e93896cadc5a91468964febb3c5d488
treeb0ae37b6ff3814566047f4cb8e5cac1d0738fc12tree | snapshot
parent5b7a96220900e3c3f6fb53908eb4602cda959376commit | diff
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>
kernel/trace/trace_kprobe.c diff | blob | blame | history
kernel/trace/trace_uprobe.c diff | blob | blame | history
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