linux-kernel - [PATCH 9/9] KVM: Improve another size determination in kvm_create

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Date:   Sun, 22 Jan 2017 19:19:02 +0100
From:   SF Markus Elfring <elfring@...rs.sourceforge.net>
To:     kvm@...r.kernel.org, Paolo Bonzini <pbonzini@...hat.com>,
        Radim Krčmář <rkrcmar@...hat.com>
Cc:     LKML <linux-kernel@...r.kernel.org>,
        kernel-janitors@...r.kernel.org
Subject: [PATCH 9/9] KVM: Improve another size determination in
 kvm_create_vm()

From: Markus Elfring <elfring@...rs.sourceforge.net>
Date: Sun, 22 Jan 2017 18:56:26 +0100

Replace the specification of a data structure by a pointer dereference
as the parameter for the operator "sizeof" to make the corresponding size
determination a bit safer according to the Linux coding style convention.

Signed-off-by: Markus Elfring <elfring@...rs.sourceforge.net>
---
 virt/kvm/kvm_main.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index 4267a2c6f2aa..0feefe45aa21 100644
--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c
@@ -651,8 +651,7 @@ static struct kvm *kvm_create_vm(unsigned long type)
 	if (init_srcu_struct(&kvm->irq_srcu))
 		goto out_err_no_irq_srcu;
 	for (i = 0; i < KVM_NR_BUSES; i++) {
-		kvm->buses[i] = kzalloc(sizeof(struct kvm_io_bus),
-					GFP_KERNEL);
+		kvm->buses[i] = kzalloc(sizeof(*kvm->buses[i]), GFP_KERNEL);
 		if (!kvm->buses[i])
 			goto out_err;
 	}
-- 
2.11.0