--- sys/netsmb/smb_subr.c.orig	Thu Dec 22 16:52:55 2005
+++ sys/netsmb/smb_subr.c	Thu Dec 22 17:11:19 2005
@@ -333,8 +334,13 @@
 		*srclen -= inlen;
 		*dstlen -= outlen;
 		return 0;
-	} else
-		return error;
+	} else {
+		if (error == -1) {	/* PR 90815 (modified) */
+			bcopy(src, dst, inlen);
+			return 0;
+		} else
+			return error;
+	}
 }
 
 int