From: "Steven Rostedt (VMware)" 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) --- kernel/trace/ftrace.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c index 3165b7f840e6..421530831ddd 100644 --- 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; } -- 2.10.2