[PATCH 09/12] process_tree/blob: check for NULL

From: Martin Koegler <mkoegler@auto.tuwien.ac.at>
Date: Feb 18, 2008, 20:48 UTC
Message-ID: <12033676842301-git-send-email-mkoegler@auto.tuwien.ac.at>
In-Reply-To: <12033676833893-git-send-email-mkoegler@auto.tuwien.ac.at>

As these functions are directly called with the result from lookup_tree/blob, they must handle NULL.

Signed-off-by: Martin Koegler <mkoegler@auto.tuwien.ac.at>
---
 reachable.c |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)

diff --git a/reachable.c b/reachable.c
index 339be7f..3b1c18f 100644
--- a/reachable.c
+++ b/reachable.c
@@ -15,6 +15,8 @@ static void process_blob(struct blob *blob,
 {
 	struct object *obj = &blob->object;
 
+	if (!blob)
+		die("bad blob object");
 	if (obj->flags & SEEN)
 		return;
 	obj->flags |= SEEN;
@@ -39,6 +41,8 @@ static void process_tree(struct tree *tree,
 	struct name_entry entry;
 	struct name_path me;
 
+	if (!tree)
+		die("bad tree object");
 	if (obj->flags & SEEN)
 		return;
 	obj->flags |= SEEN;

-- 
1.5.4.1.g96b77