On 07/07/16 10:01, Jan Beulich wrote:
> Only a positive return value indicates success.
>
> Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx>
Acked-by: Juergen Gross <jgross@xxxxxxxx>
> ---
> drivers/xen/xen-scsiback.c | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
>
> --- 4.7-rc6-xenbus_scanf.orig/drivers/xen/xen-scsiback.c
> +++ 4.7-rc6-xenbus_scanf/drivers/xen/xen-scsiback.c
> @@ -1071,7 +1071,7 @@ static void scsiback_do_1lun_hotplug(str
> /* read status */
> snprintf(state, sizeof(state), "vscsi-devs/%s/state", ent);
> err = xenbus_scanf(XBT_NIL, dev->nodename, state, "%u", &device_state);
> - if (XENBUS_EXIST_ERR(err))
> + if (err <= 0)
> return;
>
> /* physical SCSI device */
> @@ -1089,7 +1089,7 @@ static void scsiback_do_1lun_hotplug(str
> snprintf(str, sizeof(str), "vscsi-devs/%s/v-dev", ent);
> err = xenbus_scanf(XBT_NIL, dev->nodename, str, "%u:%u:%u:%u",
> &vir.hst, &vir.chn, &vir.tgt, &vir.lun);
> - if (XENBUS_EXIST_ERR(err)) {
> + if (err != 4) {
> xenbus_printf(XBT_NIL, dev->nodename, state,
> "%d", XenbusStateClosed);
> return;
>
>
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