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| author | Artem Savkov <asavkov@redhat.com> | 2018-07-25 16:20:38 +0200 |
|---|---|---|
| committer | Steven Rostedt (VMware) <rostedt@goodmis.org> | 2018-07-25 11:41:08 -0400 |
| commit | 57ea2a34adf40f3a6e88409aafcf803b8945619a (patch) | |
| tree | c0434898d0781699c6a698e64673bbaa15df208a /kernel/trace/trace_events_trigger.c | |
| parent | 82f4f3e69c5c29bce940dd87a2c0f16c51d48d17 (diff) | |
| download | lwn-57ea2a34adf40f3a6e88409aafcf803b8945619a.tar.gz lwn-57ea2a34adf40f3a6e88409aafcf803b8945619a.zip | |
tracing/kprobes: Fix trace_probe flags on enable_trace_kprobe() failure
If enable_trace_kprobe fails to enable the probe in enable_k(ret)probe
it returns an error, but does not unset the tp flags it set previously.
This results in a probe being considered enabled and failures like being
unable to remove the probe through kprobe_events file since probes_open()
expects every probe to be disabled.
Link: http://lkml.kernel.org/r/20180725102826.8300-1-asavkov@redhat.com
Link: http://lkml.kernel.org/r/20180725142038.4765-1-asavkov@redhat.com
Cc: Ingo Molnar <mingo@redhat.com>
Cc: stable@vger.kernel.org
Fixes: 41a7dd420c57 ("tracing/kprobes: Support ftrace_event_file base multibuffer")
Acked-by: Masami Hiramatsu <mhiramat@kernel.org>
Reviewed-by: Josh Poimboeuf <jpoimboe@redhat.com>
Signed-off-by: Artem Savkov <asavkov@redhat.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Diffstat (limited to 'kernel/trace/trace_events_trigger.c')
0 files changed, 0 insertions, 0 deletions