@@ -145,7 +145,7 @@ func DetectCompression(source []byte) Compression {

 			logrus.Debug("Len too short")

 			continue

 		}

-		if bytes.Compare(m, source[:len(m)]) == 0 {

+		if bytes.Equal(m, source[:len(m)]) {

 			return compression

 		}

 	}

@@ -107,10 +107,7 @@ func handleTarTypeBlockCharFifo(hdr *tar.Header, path string) error {

 		mode |= syscall.S_IFIFO

 	}

-	if err := system.Mknod(path, mode, int(system.Mkdev(hdr.Devmajor, hdr.Devminor))); err != nil {

-		return err

-	}

-	return nil

+	return system.Mknod(path, mode, int(system.Mkdev(hdr.Devmajor, hdr.Devminor)))

 }

 func handleLChmod(hdr *tar.Header, path string, hdrInfo os.FileInfo) error {

@@ -267,7 +267,7 @@ func (info *FileInfo) addChanges(oldInfo *FileInfo, changes *[]Change) {

 	}

 	for name, newChild := range info.children {

-		oldChild, _ := oldChildren[name]

+		oldChild := oldChildren[name]

 		if oldChild != nil {

 			// change?

 			oldStat := oldChild.stat

@@ -279,7 +279,7 @@ func (info *FileInfo) addChanges(oldInfo *FileInfo, changes *[]Change) {

 			// breaks down is if some code intentionally hides a change by setting

 			// back mtime

 			if statDifferent(oldStat, newStat) ||

-				bytes.Compare(oldChild.capability, newChild.capability) != 0 {

+				!bytes.Equal(oldChild.capability, newChild.capability) {

 				change := Change{

 					Path: newChild.path(),

 					Kind: ChangeModify,

@@ -77,7 +77,7 @@ func TestChrootUntarWithHugeExcludesList(t *testing.T) {

 	options := &archive.TarOptions{}

 	//65534 entries of 64-byte strings ~= 4MB of environment space which should overflow

 	//on most systems when passed via environment or command line arguments

-	excludes := make([]string, 65534, 65534)

+	excludes := make([]string, 65534)

 	for i := 0; i < 65534; i++ {

 		excludes[i] = strings.Repeat(string(i), 64)

 	}