wrap some errors and fix static check error style warning

pkg/cbfs/file.go

@@ -193,5 +193,5 @@ func (f *File) Decompress() ([]byte, error) {
 		compressor := compression.LZ4{}
 		return compressor.Decode(f.FData)
 	}
-	return nil, fmt.Errorf("Unknown compression")
+	return nil, fmt.Errorf("unknown compression")
 }

pkg/cbfs/image.go

@@ -36,7 +36,7 @@ func NewImage(rs io.ReadSeeker) (*Image, error) {
 	// ReadSeeker on a []byte.
 	b, err := io.ReadAll(rs)
 	if err != nil {
-		return nil, fmt.Errorf("ReadAll: %v", err)
+		return nil, fmt.Errorf("failed to read: %w", err)
 	}
 	in := bytes.NewReader(b)
 	f, m, err := fmap.Read(in)
@@ -53,7 +53,7 @@ func NewImage(rs io.ReadSeeker) (*Image, error) {
 		}
 	}
 	if i.Area == nil {
-		return nil, fmt.Errorf("No CBFS in fmap")
+		return nil, fmt.Errorf("no CBFS in fmap")
 	}
 	r := io.NewSectionReader(in, int64(i.Area.Offset), int64(i.Area.Size))
 
@@ -89,7 +89,7 @@ func NewImage(rs io.ReadSeeker) (*Image, error) {
 		}
 		Debug("Segment: %v", s)
 		if err := s.Read(bytes.NewReader(f.FData)); err != nil {
-			return nil, fmt.Errorf("Reading %#x byte subheader, type %v: %v", len(f.FData), f.Type, err)
+			return nil, fmt.Errorf("reading %#x byte subheader, type %v: %w", len(f.FData), f.Type, err)
 		}
 		Debug("Segment was readable")
 		i.Segs = append(i.Segs, s)
@@ -120,15 +120,15 @@ func (i *Image) Update() error {
 			return err
 		}
 		if _, err := b.Write(s.GetFile().Attr); err != nil {
-			return fmt.Errorf("Writing attr to cbfs record for %v: %v", s, err)
+			return fmt.Errorf("writing attr to cbfs record for %v: %w", s, err)
 		}
 		if err := s.Write(&b); err != nil {
 			return err
 		}
 		// This error should not happen but we need to check just in case.
 		end := uint32(len(b.Bytes())) + s.GetFile().RecordStart
 		if end > i.Area.Size {
-			return fmt.Errorf("Region [%#x, %#x] outside of CBFS [%#x, %#x]", s.GetFile().RecordStart, end, s.GetFile().RecordStart, i.Area.Size)
+			return fmt.Errorf("region [%#x, %#x] outside of CBFS [%#x, %#x]", s.GetFile().RecordStart, end, s.GetFile().RecordStart, i.Area.Size)
 		}
 
 		Debug("Copy %s %d bytes to i.Data[%d]", s.GetFile().Type.String(), len(b.Bytes()), i.Area.Offset+s.GetFile().RecordStart)

pkg/cbfs/payload.go

@@ -38,7 +38,7 @@ func (p *PayloadRecord) Read(in io.ReadSeeker) error {
 	// Seek to offset (after the header); the remainder is the actual payload.
 	offset, err := in.Seek(0, io.SeekCurrent)
 	if err != nil {
-		return fmt.Errorf("Finding location in stream: %v", err)
+		return fmt.Errorf("finding location in stream: %w", err)
 	}
 	bodySize := int64(p.Size) - offset
 	Debug("Payload size: %v, body size: %v, offset: %v", p.Size, bodySize, offset)

pkg/intel/microcode/microcode.go

@@ -86,26 +86,26 @@ func ParseIntelMicrocode(r io.Reader) (*Microcode, error) {
 	var m Microcode
 
 	if err := binary.Read(r, binary.LittleEndian, &m.Header); err != nil {
-		return nil, fmt.Errorf("Failed to read header: %v", err)
+		return nil, fmt.Errorf("failed to read header: %w", err)
 	}
 
 	// Sanitychecks
 	if getTotalSize(m.Header) < getDataSize(m.Header)+uint32(binary.Size(Header{})) {
-		return nil, fmt.Errorf("Bad data file size")
+		return nil, fmt.Errorf("bad data file size")
 	}
 	if m.HeaderLoaderRevision != 1 || m.HeaderVersion != 1 {
-		return nil, fmt.Errorf("Invalid version or revision")
+		return nil, fmt.Errorf("invalid version or revision")
 	}
 	if getDataSize(m.Header)%4 > 0 {
-		return nil, fmt.Errorf("Data size not 32bit aligned")
+		return nil, fmt.Errorf("data size not 32bit aligned")
 	}
 	if getTotalSize(m.Header)%4 > 0 {
-		return nil, fmt.Errorf("Total size not 32bit aligned")
+		return nil, fmt.Errorf("total size not 32bit aligned")
 	}
 	// Read data
 	m.Data = make([]byte, getDataSize(m.Header))
 	if err := binary.Read(r, binary.LittleEndian, &m.Data); err != nil {
-		return nil, fmt.Errorf("Failed to read data: %v", err)
+		return nil, fmt.Errorf("failed to read data: %w", err)
 	}
 
 	// Calculcate checksum
@@ -123,7 +123,7 @@ func ParseIntelMicrocode(r io.Reader) (*Microcode, error) {
 		checksum += data
 	}
 	if checksum != 0 {
-		return nil, fmt.Errorf("Checksum is not null: %#x", checksum)
+		return nil, fmt.Errorf("checksum is not null: %#x", checksum)
 	}
 
 	if getTotalSize(m.Header) <= getDataSize(m.Header)+uint32(binary.Size(Header{})) {
@@ -132,12 +132,12 @@ func ParseIntelMicrocode(r io.Reader) (*Microcode, error) {
 
 	// Read extended header
 	if err := binary.Read(r, binary.LittleEndian, &m.ExtSigTable); err != nil {
-		return nil, fmt.Errorf("Failed to read extended sig table: %v", err)
+		return nil, fmt.Errorf("failed to read extended sig table: %w", err)
 	}
 	for i := uint32(0); i < m.ExtSigTable.Count; i++ {
 		var signature ExtendedSignature
 		if err := binary.Read(r, binary.LittleEndian, &signature); err != nil {
-			return nil, fmt.Errorf("Failed to read extended signature: %v", err)
+			return nil, fmt.Errorf("failed to read extended signature: %w", err)
 		}
 		m.ExtendedSignatures = append(m.ExtendedSignatures, signature)
 	}
@@ -160,7 +160,7 @@ func ParseIntelMicrocode(r io.Reader) (*Microcode, error) {
 		checksum += data
 	}
 	if checksum != 0 {
-		return nil, fmt.Errorf("Extended header checksum is not null: %#x", checksum)
+		return nil, fmt.Errorf("extended header checksum is not null: %#x", checksum)
 	}
 
 	return &m, nil

pkg/uefi/file.go

@@ -179,7 +179,7 @@ type ThreeUint8 [3]uint8
 
 func (t *ThreeUint8) UnmarshalJSON(b []byte) error {
 	if copy(t[:], b) == 0 {
-		return fmt.Errorf("Cannot unmarshal 3 uint8 from %v\n", b)
+		return fmt.Errorf("cannot unmarshal 3 uint8 from %v", b)
 	}
 	return nil
 }