On Mon, Jan 26, 2009 at 10:54:23AM +0000, Richard W.M. Jones wrote:
On Thu, Jan 22, 2009 at 05:49:12PM -0800, john.levon(a)sun.com wrote:
> + /*
> + * If it's not running, we can't help.
> + */
> + if (domain->id < 0)
> + return NULL;
NACK. Unfortunately you shouldn't return from a function without
setting an error (and you have to set an error exactly once otherwise
earlier errors get overwritten).
Perhaps if you want to silence the error, you can silence it in the
calling code, eg. in virsh, by matching on the appropriate virterror
fields, eg error->code ?
The calling code isn't in virsh, it's in xen_unified. The XenStore
driver indeed cannot deal with non-running domains. I maintain this is
the correct behaviour for a sub-driver (a driver should certainly set an
error). We already have enough problems with overly eager error
reporting (try a virsh start non-existent-dom !), let's not make it
worse.
regards
john