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ftrace: Fix memory leak on failure path in ftrace_allocate_pages()

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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>
This commit is contained in:
Namhyung Kim 2014-06-11 17:06:53 +09:00 committed by Steven Rostedt
parent a737e6dd7b
commit 1f61be007e
1 changed files with 2 additions and 1 deletions
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3
kernel/trace/ftrace.c
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@ -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;