[PATCH] kvm: initialize SVM spinlock

From: Dmitry Vyukov <dvyukov@google.com>
To: joro@8bytes.org, pbonzini@redhat.com, rkrcmar@redhat.com
Cc: Dmitry Vyukov <dvyukov@google.com>,
	kvm@vger.kernel.org, syzkaller@googlegroups.com
Subject: [PATCH] kvm: initialize SVM spinlock
Date: Sun, 22 Jan 2017 10:04:53 +0100	[thread overview]
Message-ID: <20170122090453.88101-1-dvyukov@google.com> (raw)

Currently svm_vm_data_hash_lock is left uninitialized.
This causes lockdep warnings. Properly initialize it.

Signed-off-by: Dmitry Vyukov <dvyukov@google.com>
Cc: Joerg Roedel <joro@8bytes.org>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: "Radim Krčmář" <rkrcmar@redhat.com>
Cc: kvm@vger.kernel.org
Cc: syzkaller@googlegroups.com
---
 arch/x86/kvm/svm.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c
index 08a4d3ab3455..b928a9c34987 100644
--- a/arch/x86/kvm/svm.c
+++ b/arch/x86/kvm/svm.c
@@ -972,7 +972,7 @@ static void svm_disable_lbrv(struct vcpu_svm *svm)
  */
 #define SVM_VM_DATA_HASH_BITS	8
 DECLARE_HASHTABLE(svm_vm_data_hash, SVM_VM_DATA_HASH_BITS);
-static spinlock_t svm_vm_data_hash_lock;
+static DEFINE_SPINLOCK(svm_vm_data_hash_lock);
 
 /* Note:
  * This function is called from IOMMU driver to notify
-- 
2.11.0.483.g087da7b7c-goog
