oci: FreeBSD devices may have major number 0

Signed-off-by: Samuel Karp <me@samuelkarp.com>

oci/utils_unix_test.go

@@ -23,6 +23,7 @@ import (
 	"errors"
 	"fmt"
 	"os"
+	"runtime"
 	"testing"
 
 	"github.com/stretchr/testify/assert"
@@ -149,9 +150,11 @@ func TestHostDevicesAllValid(t *testing.T) {
 	}
 
 	for _, device := range devices {
-		// Devices can't have major number 0.
-		if device.Major == 0 {
-			t.Errorf("device entry %+v has zero major number", device)
+		if runtime.GOOS != "freebsd" {
+			// On Linux, devices can't have major number 0.
+			if device.Major == 0 {
+				t.Errorf("device entry %+v has zero major number", device)
+			}
 		}
 		switch device.Type {
 		case blockDevice, charDevice: