From: Dan Carpenter <error27@gmail.com>
Date: Sun, 24 Oct 2010 19:50:42 +0000 (+0200)
Subject: perf: Fix off by one in perf_swevent_init()
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=ce677831a4abd0f9f957c90ac6f6a0d0472bafb4;p=GitHub%2Fexynos8895%2Fandroid_kernel_samsung_universal8895.git

perf: Fix off by one in perf_swevent_init()

The perf_swevent_enabled[] array has PERF_COUNT_SW_MAX elements.

Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <20101024195041.GT5985@bicker>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---

diff --git a/kernel/perf_event.c b/kernel/perf_event.c
index 7b870174c56d..2870feee81dd 100644
--- a/kernel/perf_event.c
+++ b/kernel/perf_event.c
@@ -4719,7 +4719,7 @@ static int perf_swevent_init(struct perf_event *event)
 		break;
 	}
 
-	if (event_id > PERF_COUNT_SW_MAX)
+	if (event_id >= PERF_COUNT_SW_MAX)
 		return -ENOENT;
 
 	if (!event->parent) {