Avoid empty 'len'

LMMS · Feb 4, 2017 · f410d05 · f410d05
1 parent 62c8700
commit f410d05
Showing 1 changed file with 6 additions and 3 deletions.
diff --git a/src/core/DataFile.cpp b/src/core/DataFile.cpp
@@ -915,9 +915,12 @@ void DataFile::upgrade_1_2_0_rc3()
 			QDomElement el = list.item( i ).toElement();
 			for( int i = 0; !list.item( i ).isNull(); ++i )
 			{
-				patternLength = el.attribute( "len" ).toInt();
-				steps = patternLength / 12;
-				el.setAttribute( "steps", steps );
+				if( el.attribute( "len" ) != "" )
+				{
+					patternLength = el.attribute( "len" ).toInt();
+					steps = patternLength / 12;
+					el.setAttribute( "steps", steps );
+				}
 			}
 		}
 	}