On 2/2/21 6:49 AM, Vladimir Sementsov-Ogievskiy wrote:
> Set errp always on failure. Generic bdrv_open_driver supports driver
> functions which can return negative value and forget to set errp.
> That's a strange thing.. Let's improve bdrv_qed_do_open to not behave
> this way. This allows to simplify code in
> bdrv_qed_co_invalidate_cache().

Grammar tweak:

Always set errp on failure.  Generic bdrv_open_driver supports driver
functions which can return a negative value but forget to set errp.
That's a strange thing. Let's improve bdrv_qed_do_open to not behave
this way.  This allows the simplification of code in
bdrv_qed_co_invalidate_cache().

> 
> Signed-off-by: Vladimir Sementsov-Ogievskiy <vsement...@virtuozzo.com>
> Reviewed-by: Alberto Garcia <be...@igalia.com>
> Reviewed-by: Greg Kurz <gr...@kaod.org>
> ---
>  block/qed.c | 24 +++++++++++++++---------
>  1 file changed, 15 insertions(+), 9 deletions(-)
> 

-- 
Eric Blake, Principal Software Engineer
Red Hat, Inc.           +1-919-301-3226
Virtualization:  qemu.org | libvirt.org


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