Re: [PATCH 2/3] hw/display: Allow vga_common_init() to return errors

["Philippe Mathieu-Daudé" <philippe.mathieu.daude@gmail.com>]

On 16/3/22 14:24, Thomas Huth wrote:
> The vga_common_init() function currently cannot report errors to its
> caller. But in the following patch, we'd need this possibility, so
> let's change it to take an "Error **" as parameter for this.
> 
> Signed-off-by: Thomas Huth <thuth@redhat.com>
> ---
>   hw/display/ati.c            |  7 ++++++-
>   hw/display/cirrus_vga.c     |  7 ++++++-
>   hw/display/cirrus_vga_isa.c |  7 ++++++-
>   hw/display/qxl.c            |  6 +++++-
>   hw/display/vga-isa.c        |  9 ++++++++-
>   hw/display/vga-mmio.c       |  8 +++++++-
>   hw/display/vga-pci.c        | 15 +++++++++++++--
>   hw/display/vga.c            |  9 +++++++--
>   hw/display/vga_int.h        |  2 +-
>   hw/display/virtio-vga.c     |  7 ++++++-
>   hw/display/vmware_vga.c     |  2 +-
>   11 files changed, 66 insertions(+), 13 deletions(-)

Please setup scripts/git.orderfile :)

> diff --git a/hw/display/vga_int.h b/hw/display/vga_int.h
> index 847e784ca6..3e8892df28 100644
> --- a/hw/display/vga_int.h
> +++ b/hw/display/vga_int.h
> @@ -156,7 +156,7 @@ static inline int c6_to_8(int v)
>       return (v << 2) | (b << 1) | b;
>   }
>   
> -void vga_common_init(VGACommonState *s, Object *obj);
> +void vga_common_init(VGACommonState *s, Object *obj, Error **errp);

Can we also return a boolean value? IIUC Markus recommended to check
a boolean return value rather than Error* handle.