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authorNamhyung Kim <namhyung.kim@lge.com>2013-04-01 21:46:23 +0900
committerSteven Rostedt <rostedt@goodmis.org>2013-04-09 18:54:04 -0400
commit83e03b3fe4daffdebbb42151d5410d730ae50bd1 (patch)
tree007c3030b619ba28965c60e3e8fa57dd9bbc236e /kernel/trace
parent395b97a3aeff0b8d949ee3e67bf8c11c5ffd6861 (diff)
tracing: Fix double free when function profile init failed
On the failure path, stat->start and stat->pages will refer same page. So it'll attempt to free the same page again and get kernel panic. Link: http://lkml.kernel.org/r/1364820385-32027-1-git-send-email-namhyung@kernel.org Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Namhyung Kim <namhyung.kim@lge.com> Cc: stable@vger.kernel.org Signed-off-by: Namhyung Kim <namhyung@kernel.org> Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Diffstat (limited to 'kernel/trace')
-rw-r--r--kernel/trace/ftrace.c1
1 files changed, 0 insertions, 1 deletions
diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c
index 7e897106b7e..926ebfb7493 100644
--- a/kernel/trace/ftrace.c
+++ b/kernel/trace/ftrace.c
@@ -694,7 +694,6 @@ int ftrace_profile_pages_init(struct ftrace_profile_stat *stat)
free_page(tmp);
}
- free_page((unsigned long)stat->pages);
stat->pages = NULL;
stat->start = NULL;