diff options
| author | Jiri Olsa <jolsa@redhat.com> | 2021-12-06 21:20:31 +0300 |
|---|---|---|
| committer | Steven Rostedt (VMware) <rostedt@goodmis.org> | 2021-12-08 20:12:02 +0300 |
| commit | fea3ffa48c6d42a11dca766c89284d22eaf5603f (patch) | |
| tree | ad54cc756325d4e0cd30e803d96043eb482f60bb | |
| parent | 7d5b7cad79da76f3dad4a9f6040e524217814e5a (diff) | |
| download | linux-fea3ffa48c6d42a11dca766c89284d22eaf5603f.tar.xz | |
ftrace: Add cleanup to unregister_ftrace_direct_multi
Adding ops cleanup to unregister_ftrace_direct_multi,
so it can be reused in another register call.
Link: https://lkml.kernel.org/r/20211206182032.87248-3-jolsa@kernel.org
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Heiko Carstens <hca@linux.ibm.com>
Fixes: f64dd4627ec6 ("ftrace: Add multi direct register/unregister interface")
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
| -rw-r--r-- | kernel/trace/ftrace.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c index 7f0594e28226..be5f6b32a012 100644 --- a/kernel/trace/ftrace.c +++ b/kernel/trace/ftrace.c @@ -5542,6 +5542,10 @@ int unregister_ftrace_direct_multi(struct ftrace_ops *ops, unsigned long addr) err = unregister_ftrace_function(ops); remove_direct_functions_hash(hash, addr); mutex_unlock(&direct_mutex); + + /* cleanup for possible another register call */ + ops->func = NULL; + ops->trampoline = 0; return err; } EXPORT_SYMBOL_GPL(unregister_ftrace_direct_multi); |