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From: Namhyung Kim <namhyung@kernel.org>
To: Steven Rostedt <rostedt@goodmis.org>
Cc: LKML <linux-kernel@vger.kernel.org>,
	Namhyung Kim <namhyung.kim@lge.com>,
	Namhyung Kim <namhyung@kernel.org>,
	Ingo Molnar <mingo@kernel.org>
Subject: [PATCH 1/2] tracing: Fix memory leak on failure path in ftrace_allocate_pages()
Date: Wed, 11 Jun 2014 17:06:53 +0900	[thread overview]
Message-ID: <1402474014-28655-1-git-send-email-namhyung@kernel.org> (raw)

As struct ftrace_page is managed in a single linked list, it should
free from the start page.

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 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 5b372e3ed675..ddfda763ded7 100644
--- a/kernel/trace/ftrace.c
+++ b/kernel/trace/ftrace.c
@@ -2398,7 +2398,8 @@ 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;
-- 
2.0.0


             reply	other threads:[~2014-06-11  8:07 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-06-11  8:06 Namhyung Kim [this message]
2014-06-11  8:06 ` [PATCH 2/2] tracing: Do not copy hash if O_TRUNC is set Namhyung Kim
2014-06-11 14:05   ` Steven Rostedt
2014-06-11 14:03 ` [PATCH 1/2] tracing: Fix memory leak on failure path in ftrace_allocate_pages() Steven Rostedt
2014-06-12  1:08   ` Namhyung Kim

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