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[PATCH 1/3] kvm: use kmalloc() instead of kzalloc() during iodev register/unregister

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From Jason Wang <jasowang@redhat.com>
Newsgroups linux.kernel
Subject [PATCH 1/3] kvm: use kmalloc() instead of kzalloc() during iodev register/unregister
Date Fri, 21 Aug 2015 10:10:03 +0200
Message-ID <pZPyG-6cu-9@gated-at.bofh.it> (permalink)
X-Original-To gleb@kernel.org, pbonzini@redhat.com, kvm@vger.kernel.org, linux-kernel@vger.kernel.org
X-Scanned-By MIMEDefang 2.68 on 10.5.11.27
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X-Original-Cc Jason Wang <jasowang@redhat.com>, "Michael S. Tsirkin" <mst@redhat.com>
X-Original-Date Fri, 21 Aug 2015 16:03:51 +0800
X-Original-Message-ID <1440144233-29748-1-git-send-email-jasowang@redhat.com>
X-Original-Sender linux-kernel-owner@vger.kernel.org
Xref csiph.com linux.kernel:1210996

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All fields of kvm_io_range were initialized or copied explicitly
afterwards. So switch to use kmalloc().

Cc: Gleb Natapov <gleb@kernel.org>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
---
 virt/kvm/kvm_main.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index 8b8a444..0d79fe8 100644
--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c
@@ -3248,7 +3248,7 @@ int kvm_io_bus_register_dev(struct kvm *kvm, enum kvm_bus bus_idx, gpa_t addr,
 	if (bus->dev_count - bus->ioeventfd_count > NR_IOBUS_DEVS - 1)
 		return -ENOSPC;
 
-	new_bus = kzalloc(sizeof(*bus) + ((bus->dev_count + 1) *
+	new_bus = kmalloc(sizeof(*bus) + ((bus->dev_count + 1) *
 			  sizeof(struct kvm_io_range)), GFP_KERNEL);
 	if (!new_bus)
 		return -ENOMEM;
@@ -3280,7 +3280,7 @@ int kvm_io_bus_unregister_dev(struct kvm *kvm, enum kvm_bus bus_idx,
 	if (r)
 		return r;
 
-	new_bus = kzalloc(sizeof(*bus) + ((bus->dev_count - 1) *
+	new_bus = kmalloc(sizeof(*bus) + ((bus->dev_count - 1) *
 			  sizeof(struct kvm_io_range)), GFP_KERNEL);
 	if (!new_bus)
 		return -ENOMEM;
-- 
2.1.4

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[PATCH 1/3] kvm: use kmalloc() instead of kzalloc() during iodev register/unregister Jason Wang <jasowang@redhat.com> - 2015-08-21 10:10 +0200

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