adding exception handling for this case

weed-fs/src/pkg/storage/needle.go

@@ -32,7 +32,12 @@ func NewNeedle(r *http.Request) (n *Needle, fname string, e error) {
 		e = fe
 		return
 	}
-	part, _ := form.NextPart()
+	part, fe := form.NextPart()
+	if fe != nil {
+		fmt.Println("Reading Multi part [ERROR]", fe)
+		e = fe
+		return
+	}
 	fname = part.FileName()
 	data, _ := ioutil.ReadAll(part)
 	//log.Println("uploading file " + part.FileName())