cio: FIFOSet.Close() check if FIFOSet is nill to prevent NPE

thaJeztah · thaJeztah · commit 6a2d3990d1db · 2021-02-01T11:17:51.000+01:00
Signed-off-by: Sebastiaan van Stijn &lt;github@gone.nl&gt;
diff --git a/cio/io.go b/cio/io.go
@@ -80,7 +80,7 @@ type FIFOSet struct {
 
 // Close the FIFOSet
 func (f *FIFOSet) Close() error {
-	if f.close != nil {
+	if f != nil && f.close != nil {
 		return f.close()
 	}
 	return nil
