use bytes.Equal rather than bytes.Compare

matrix.go

@@ -178,10 +178,7 @@ func (m matrix) SwapRows(r1, r2 int) error {
 // IsSquare will return true if the matrix is square
 // and nil if the matrix is square
 func (m matrix) IsSquare() bool {
-	if len(m) != len(m[0]) {
-		return false
-	}
-	return true
+	return len(m) == len(m[0])
 }
 
 // errSingular is returned if the matrix is singular and cannot be inversed

reedsolomon.go

@@ -280,7 +280,7 @@ func (r reedSolomon) checkSomeShards(matrixRows, inputs, toCheck [][]byte, outpu
 			}
 
 			for i, calc := range outputs {
-				if bytes.Compare(calc, toCheck[i][start:start+do]) != 0 {
+				if !bytes.Equal(calc, toCheck[i][start:start+do]) {
 					mu.Lock()
 					same = false
 					mu.Unlock()