From: Li Guanglei <guanglei.li@unisoc.com>
Date: Wed, 25 Dec 2019 07:44:04 +0000 (+0800)
Subject: sched/core: Fix size of rq::uclamp initialization
X-Git-Tag: v5.4.22~95
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=5d13f62b9ef6b8bb2ba222bf776adbd3fe615454;p=thirdparty%2Fkernel%2Fstable.git

sched/core: Fix size of rq::uclamp initialization

[ Upstream commit dcd6dffb0a75741471297724640733fa4e958d72 ]

rq::uclamp is an array of struct uclamp_rq, make sure we clear the
whole thing.

Fixes: 69842cba9ace ("sched/uclamp: Add CPU's clamp buckets refcountinga")
Signed-off-by: Li Guanglei <guanglei.li@unisoc.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Qais Yousef <qais.yousef@arm.com>
Link: https://lkml.kernel.org/r/1577259844-12677-1-git-send-email-guangleix.li@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---

diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index dfaefb175ba05..e6c65725b7ce0 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -1252,7 +1252,8 @@ static void __init init_uclamp(void)
 	mutex_init(&uclamp_mutex);
 
 	for_each_possible_cpu(cpu) {
-		memset(&cpu_rq(cpu)->uclamp, 0, sizeof(struct uclamp_rq));
+		memset(&cpu_rq(cpu)->uclamp, 0,
+				sizeof(struct uclamp_rq)*UCLAMP_CNT);
 		cpu_rq(cpu)->uclamp_flags = 0;
 	}