satisfy valgrind
diff --git a/src/lib9/_p9dir.c b/src/lib9/_p9dir.c
index 7c278a1..5726969 100644
--- a/src/lib9/_p9dir.c
+++ b/src/lib9/_p9dir.c
@@ -53,6 +53,9 @@
 	long l;
 	struct hd_geometry geo;
 
+	memset(&geo, 0, sizeof geo);
+	l = 0;
+	u64 = 0;
 #ifdef BLKGETSIZE64
 	if(ioctl(fd, BLKGETSIZE64, &u64) >= 0)
 		return u64;