ftrace: Return NULL at end of t_start() instead of calling t_hash_start()

The loop in t_start() of calling t_next() will call t_hash_start() if the
pos is beyond the functions and enters the hash items. There's no reason to
check if p is NULL and call t_hash_start(), as that would be redundant.

Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>

diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c
index 3165b7f..4215308 100644 (file)
--- a/kernel/trace/ftrace.c
+++ b/kernel/trace/ftrace.c
@@ -3255,7 +3255,7 @@ static void *t_start(struct seq_file *m, loff_t *pos)
        }
 
        if (!p)
-               return t_hash_start(m, pos);
+               return NULL;
 
        return iter;
 }