Commit fea3ffa4 authored by Jiri Olsa's avatar Jiri Olsa Committed by Steven Rostedt (VMware)
Browse files

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: f64dd462 ("ftrace: Add multi direct register/unregister interface")
Signed-off-by: default avatarJiri Olsa <jolsa@kernel.org>
Signed-off-by: default avatarSteven Rostedt (VMware) <rostedt@goodmis.org>
parent 7d5b7cad

kernel/trace/ftrace.c

+4 −0
Original line number Diff line number Diff line
@@ -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);