[ 032/136 ] tracing: Fix off-by-one on allocating stat->pages

Steven Rostedt
2013-05-18T02:25:48Z

[-- Attachment #1: 0032-tracing-Fix-off-by-one-on-allocating-stat-pages.patch --]
[-- Type: text/plain, Size: 1115 bytes --]

3.6.11.4 stable review patch.
If anyone has any objections, please let me know.

------------------

From: Namhyung Kim <namhyung.kim@lge.com>

[ Upstream commit 39e30cd1537937d3c00ef87e865324e981434e5b ]

The first page was allocated separately, so no need to start from 0.

Link: http://lkml.kernel.org/r/1364820385-32027-2-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>
---
kernel/trace/ftrace.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c
index d5525eb..f8cef7f 100644
--- a/kernel/trace/ftrace.c
+++ b/kernel/trace/ftrace.c
@@ -624,7 +624,7 @@ int ftrace_profile_pages_init(struct ftrace_profile_stat *stat)

pages = DIV_ROUND_UP(functions, PROFILES_PER_PAGE);

- for (i = 0; i < pages; i++) {
+ for (i = 1; i < pages; i++) {
pg->next = (void *)get_zeroed_page(GFP_KERNEL);
if (!pg->next)
goto out_free;
--
1.7.10.4