before adjusting should check whether need return or not

Signed-off-by: Ma Shimiao <mashimiao.fnst@cn.fujitsu.com>

daemon/create.go

@@ -21,11 +21,12 @@ func (daemon *Daemon) ContainerCreate(name string, config *runconfig.Config, hos
 	}
 
 	warnings, err := daemon.verifyContainerSettings(hostConfig, config)
-	daemon.adaptContainerSettings(hostConfig, adjustCPUShares)
 	if err != nil {
 		return nil, warnings, err
 	}
 
+	daemon.adaptContainerSettings(hostConfig, adjustCPUShares)
+
 	container, buildWarnings, err := daemon.Create(config, hostConfig, name)
 	if err != nil {
 		if daemon.Graph().IsNotExist(err, config.Image) {