Re: [PATCH V3 1/3] kvm: use kmalloc() instead of kzalloc() during iodev register/unregister

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On 25/08/2015 11:05, Jason Wang wrote:
> All fields of kvm_io_range were initialized or copied explicitly
> afterwards. So switch to use kmalloc().
> 
> Cc: Gleb Natapov <gleb@xxxxxxxxxx>
> Cc: Paolo Bonzini <pbonzini@xxxxxxxxxx>
> Cc: Michael S. Tsirkin <mst@xxxxxxxxxx>
> Signed-off-by: Jason Wang <jasowang@xxxxxxxxxx>
> ---
>  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;
> 

Applied this patch for 4.4.

Paolo
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