[024/118] tracing: Fix off-by-one on allocating stat->pages

From: Ben Hutchings
Date: Fri May 10 2013 - 10:24:17 EST


3.2.45-rc1 review patch. If anyone has any objections, please let me know.

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

From: Namhyung Kim <namhyung.kim@xxxxxxx>

commit 39e30cd1537937d3c00ef87e865324e981434e5b upstream.

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@xxxxxxxxxx

Cc: Frederic Weisbecker <fweisbec@xxxxxxxxx>
Cc: Namhyung Kim <namhyung.kim@xxxxxxx>
Signed-off-by: Namhyung Kim <namhyung@xxxxxxxxxx>
Signed-off-by: Steven Rostedt <rostedt@xxxxxxxxxxx>
Signed-off-by: Ben Hutchings <ben@xxxxxxxxxxxxxxx>
---
kernel/trace/ftrace.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

--- a/kernel/trace/ftrace.c
+++ b/kernel/trace/ftrace.c
@@ -554,7 +554,7 @@ int ftrace_profile_pages_init(struct ftr

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;

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