Re: [Qemu-devel] [PATCH] blockdev: fix drive-mirror 'granularity' error message

["Benoît Canet" <benoit.canet@irqsave.net>]

The Wednesday 27 Aug 2014 à 14:29:59 (+0100), Stefan Hajnoczi wrote :
> Name the 'granularity' parameter and give its expected value range.
> Previously the device name was mistakingly reported as the parameter
> name.
> 
> Note that the error class is unchanged from ERROR_CLASS_GENERIC_ERROR.
> 
> Reported-by: Eric Blake <eblake@redhat.com>
> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
> ---
>  blockdev.c | 5 +++--
>  1 file changed, 3 insertions(+), 2 deletions(-)
> 
> diff --git a/blockdev.c b/blockdev.c
> index 6a204c6..eeb414e 100644
> --- a/blockdev.c
> +++ b/blockdev.c
> @@ -2179,11 +2179,12 @@ void qmp_drive_mirror(const char *device, const char *target,
>      }
>  
>      if (granularity != 0 && (granularity < 512 || granularity > 1048576 * 64)) {
> -        error_set(errp, QERR_INVALID_PARAMETER, device);
> +        error_set(errp, QERR_INVALID_PARAMETER_VALUE, "granularity",
> +                  "a value in range [512B, 64MB]");
>          return;
>      }
>      if (granularity & (granularity - 1)) {
> -        error_set(errp, QERR_INVALID_PARAMETER, device);
> +        error_set(errp, QERR_INVALID_PARAMETER_VALUE, "granularity", "power of 2");
>          return;
>      }
>  
> -- 
> 1.9.3
> 
> 
Reviewed-by: Benoît Canet <benoit.canet@nodalink.com>