From: Namhyung Kim <namhyung@kernel.org>
Date: Wed, 11 Jun 2014 08:06:53 +0000 (+0900)
Subject: ftrace: Fix memory leak on failure path in ftrace_allocate_pages()
X-Git-Tag: MMI-PSA29.97-13-9~11818^2~43
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=1f61be007e16a5d60b1cf868aa30d87f181e8e14;p=GitHub%2FMotorolaMobilityLLC%2Fkernel-slsi.git

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 <namhyung@kernel.org>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---

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;