linux-kernel - [PATCH] s390: kvm/sigp.c: fix memory leakage

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Date:	Mon, 14 Jan 2013 22:39:54 +0100
From:	Cong Ding <dinggnu@...il.com>
To:	Marcelo Tosatti <mtosatti@...hat.com>,
	Gleb Natapov <gleb@...hat.com>,
	Christian Borntraeger <borntraeger@...ibm.com>,
	Cornelia Huck <cornelia.huck@...ibm.com>, linux390@...ibm.com,
	Martin Schwidefsky <schwidefsky@...ibm.com>,
	Heiko Carstens <heiko.carstens@...ibm.com>,
	kvm@...r.kernel.org, linux-s390@...r.kernel.org,
	linux-kernel@...r.kernel.org
Cc:	Cong Ding <dinggnu@...il.com>
Subject: [PATCH] s390: kvm/sigp.c: fix memory leakage

the variable inti should be freed in the branch CPUSTAT_STOPPED.

Signed-off-by: Cong Ding <dinggnu@...il.com>
---
 arch/s390/kvm/sigp.c |    4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/arch/s390/kvm/sigp.c b/arch/s390/kvm/sigp.c
index 461e841..1c48ab2 100644
--- a/arch/s390/kvm/sigp.c
+++ b/arch/s390/kvm/sigp.c
@@ -137,8 +137,10 @@ static int __inject_sigp_stop(struct kvm_s390_local_interrupt *li, int action)
 	inti->type = KVM_S390_SIGP_STOP;
 
 	spin_lock_bh(&li->lock);
-	if ((atomic_read(li->cpuflags) & CPUSTAT_STOPPED))
+	if ((atomic_read(li->cpuflags) & CPUSTAT_STOPPED)) {
+		kfree(inti);
 		goto out;
+	}
 	list_add_tail(&inti->list, &li->list);
 	atomic_set(&li->active, 1);
 	atomic_set_mask(CPUSTAT_STOP_INT, li->cpuflags);
-- 
1.7.9.5

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