bus/vdev: fix error log on secondary device scan
bus/vdev: fix error log on secondary device scan

When a secondary process handles VDEV_SCAN_ONE mp action, it is possible
the device is already be inserted. This happens when we have multiple
secondary processes which cause multiple broadcasts from primary during
bus->scan. So we don't need to log any error for -EEXIST.

Bugzilla ID: 84
Fixes: cdb068f031c6 ("bus/vdev: scan by multi-process channel")
Cc: stable@dpdk.org

Reported-by: Gage Eads <40e74f4682b7928915cbf15b25c304eff85f59a4@intel.com>
Signed-off-by: Qi Zhang <9e9e58ffa71a29bb7b87766b362515be648fcbe0@intel.com>
Acked-by: Gage Eads <40e74f4682b7928915cbf15b25c304eff85f59a4@intel.com>

john-mcnamara-intel/dpdk,john-mcnamara-intel/dpdk,john-mcnamara-intel/dpdk,john-mcnamara-intel/dpdk