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Re: [Qemu-devel] [PATCH 1/2] vfio/ccw: allocate irq info with the right
From: |
Dong Jia Shi |
Subject: |
Re: [Qemu-devel] [PATCH 1/2] vfio/ccw: allocate irq info with the right size |
Date: |
Tue, 18 Jul 2017 16:49:43 +0800 |
User-agent: |
Mutt/1.5.24 (2015-08-30) |
* Cornelia Huck <address@hidden> [2017-07-18 10:32:13 +0200]:
> On Tue, 18 Jul 2017 03:49:25 +0200
> Dong Jia Shi <address@hidden> wrote:
>
> > From: Jing Zhang <address@hidden>
> >
> > When allocating memory for the vfio_irq_info parameter of the
> > VFIO_DEVICE_GET_IRQ_INFO ioctl, we used the wrong size. Let's
> > fix it by using the right size.
> >
> > Reviewed-by: Dong Jia Shi <address@hidden>
> > Signed-off-by: Jing Zhang <address@hidden>
> > Signed-off-by: Dong Jia Shi <address@hidden>
> > ---
> > hw/vfio/ccw.c | 2 +-
> > 1 file changed, 1 insertion(+), 1 deletion(-)
> >
> > diff --git a/hw/vfio/ccw.c b/hw/vfio/ccw.c
> > index 12d0262336..8d97b53e77 100644
> > --- a/hw/vfio/ccw.c
> > +++ b/hw/vfio/ccw.c
> > @@ -168,7 +168,7 @@ static void vfio_ccw_register_io_notifier(VFIOCCWDevice
> > *vcdev, Error **errp)
> > return;
> > }
> >
> > - argsz = sizeof(*irq_set);
> > + argsz = sizeof(*irq_info);
> > irq_info = g_malloc0(argsz);
> > irq_info->index = VFIO_CCW_IO_IRQ_INDEX;
> > irq_info->argsz = argsz;
>
> irq_set is larger than irq_info, but yes, let's do this correctly.
>
> Out of curiosity, how did you spot this?
>
I'm trying to reuse the code here, while introducing some new MMIO
regions, which you will see them some days later. ;>
--
Dong Jia Shi
[Qemu-devel] [PATCH 2/2] vfio/ccw: fix initialization of the Object DeviceState pointer in the common base-device, Dong Jia Shi, 2017/07/17
Re: [Qemu-devel] [PATCH 0/2] vfio-ccw bugfixs, Cornelia Huck, 2017/07/18