On 29.07.21 13:06, Julien Grall wrote:
> From: Julien Grall <jgrall@amazon.com>
> 
> lu_start() will only set errno when it returns NULL. For all the
> other cases, the value is unknown.
> 
> This means that when lu_start() returns an error message, it may not
> be propagated to the client.
> 
> The check that errno is a non-zero value is now dropped and instead
> the value is returned when no error message is provided. This
> relies on errno to always be set when ret == NULL.
> 
> Fixes: af216a99fb ("tools/xenstore: add the basic framework for doing the live update")
> Signed-off-by: Julien Grall <jgrall@amazon.com>

Reviewed-by: Juergen Gross <jgross@suse.com>


Juergen