diff --git a/org.eclipse.jgit/src/org/eclipse/jgit/revwalk/PendingGenerator.java b/org.eclipse.jgit/src/org/eclipse/jgit/revwalk/PendingGenerator.java
index d0a1a832f..f1624070d 100644
--- a/org.eclipse.jgit/src/org/eclipse/jgit/revwalk/PendingGenerator.java
+++ b/org.eclipse.jgit/src/org/eclipse/jgit/revwalk/PendingGenerator.java
@@ -129,8 +129,6 @@ RevCommit next() throws MissingObjectException,
 				final RevCommit c = pending.next();
 				if (c == null) {
 					walker.reader.walkAdviceEnd();
-					if (!(walker instanceof ObjectWalk))
-						walker.reader.release();
 					return null;
 				}
 
@@ -179,7 +177,6 @@ else if (canDispose)
 			}
 		} catch (StopWalkException swe) {
 			walker.reader.walkAdviceEnd();
-			walker.reader.release();
 			pending.clear();
 			return null;
 		}
diff --git a/org.eclipse.jgit/src/org/eclipse/jgit/revwalk/RevWalk.java b/org.eclipse.jgit/src/org/eclipse/jgit/revwalk/RevWalk.java
index 17cdb443c..cdedacb73 100644
--- a/org.eclipse.jgit/src/org/eclipse/jgit/revwalk/RevWalk.java
+++ b/org.eclipse.jgit/src/org/eclipse/jgit/revwalk/RevWalk.java
@@ -1181,7 +1181,6 @@ protected void reset(int retainFlags) {
 			}
 		}
 
-		reader.release();
 		roots.clear();
 		queue = new DateRevQueue();
 		pending = new StartGenerator(this);