--- zzzz-none-000/linux-2.6.19.2/fs/autofs4/waitq.c	2007-01-10 19:10:37.000000000 +0000
+++ davinci-8020-5505/linux-2.6.19.2/fs/autofs4/waitq.c	2007-01-11 07:38:19.000000000 +0000
@@ -41,8 +41,10 @@
 		wake_up_interruptible(&wq->queue);
 		wq = nwq;
 	}
-	fput(sbi->pipe);	/* Close the pipe */
-	sbi->pipe = NULL;
+	if (sbi->pipe) {
+		fput(sbi->pipe);	/* Close the pipe */
+		sbi->pipe = NULL;
+	}
 }
 
 static int autofs4_write(struct file *file, const void *addr, int bytes)