From: Namhyung Kim <namhyung.kim@lge.com>
Date: Mon, 1 Apr 2013 12:46:24 +0000 (+0900)
Subject: tracing: Fix off-by-one on allocating stat->pages
X-Git-Tag: v3.8.12~63
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=3c90dc77f2bcf0ce2ac6cd31522b3833713112bc;p=karo-tx-linux.git

tracing: Fix off-by-one on allocating stat->pages

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@kernel.org

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Namhyung Kim <namhyung.kim@lge.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c
index 35cc3a8909d6..8e6e64b77609 100644
--- a/kernel/trace/ftrace.c
+++ b/kernel/trace/ftrace.c
@@ -650,7 +650,7 @@ 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;