From 1f61be007e16a5d60b1cf868aa30d87f181e8e14 Mon Sep 17 00:00:00 2001 From: Namhyung Kim Date: Wed, 11 Jun 2014 17:06:53 +0900 Subject: [PATCH] ftrace: Fix memory leak on failure path in ftrace_allocate_pages() As struct ftrace_page is managed in a single linked list, it should free from the start page. Link: http://lkml.kernel.org/p/1402474014-28655-1-git-send-email-namhyung@kernel.org Signed-off-by: Namhyung Kim Signed-off-by: Steven Rostedt --- kernel/trace/ftrace.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c index 39df3192e725..e14ff4c1713e 100644 --- a/kernel/trace/ftrace.c +++ b/kernel/trace/ftrace.c @@ -2637,7 +2637,8 @@ ftrace_allocate_pages(unsigned long num_to_init) return start_pg; free_pages: - while (start_pg) { + pg = start_pg; + while (pg) { order = get_count_order(pg->size / ENTRIES_PER_PAGE); free_pages((unsigned long)pg->records, order); start_pg = pg->next; -- 2.39.2