1 files changed, 2 insertions, 4 deletions

diff --git a/kernel/trace/trace_functions.c b/kernel/trace/trace_functions.c
index 7402144bff21..5b01b94518fc 100644
--- a/kernel/trace/trace_functions.c
+++ b/kernel/trace/trace_functions.c
@@ -288,11 +288,9 @@ static int
 ftrace_trace_onoff_print(struct seq_file *m, unsigned long ip,
                          struct ftrace_probe_ops *ops, void *data)
 {
-        char str[KSYM_SYMBOL_LEN];
         long count = (long)data;
 
-        kallsyms_lookup(ip, NULL, NULL, NULL, str);
-        seq_printf(m, "%s:", str);
+        seq_printf(m, "%pf:", (void *)ip);
 
         if (ops == &traceon_probe_ops)
                 seq_printf(m, "traceon");
@@ -363,7 +361,7 @@ ftrace_trace_onoff_callback(char *glob, char *cmd, char *param, int enable)
  out_reg:
         ret = register_ftrace_function_probe(glob, ops, count);
 
-        return ret;
+        return ret < 0 ? ret : 0;
 }
 
 static struct ftrace_func_command ftrace_traceon_cmd = {