+\r
+/**\r
+ Check if it's a valid FFS file.\r
+ Here we are sure that it has a valid FFS file header since we must call IsValidFfsHeader() first.\r
+\r
+ @param ErasePolarity Erase polarity attribute of the firmware volume \r
+ @param FfsHeader Points to the FFS file to be checked \r
+\r
+ @retval TRUE Valid FFS file \r
+ @retval FALSE Invalid FFS file\r
+\r
+**/\r