[PATCH 05/12] process_tree/blob: check for NULL

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

Signed-off-by: Martin Koegler <mkoegler@xxxxxxxxxxxxxxxxx>
---
 list-objects.c |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)

diff --git a/list-objects.c b/list-objects.c
index 4ef58e7..c8b8375 100644
--- a/list-objects.c
+++ b/list-objects.c
@@ -18,6 +18,8 @@ static void process_blob(struct rev_info *revs,
 
 	if (!revs->blob_objects)
 		return;
+	if (!obj)
+		die("bad blob object");
 	if (obj->flags & (UNINTERESTING | SEEN))
 		return;
 	obj->flags |= SEEN;
@@ -69,6 +71,8 @@ static void process_tree(struct rev_info *revs,
 
 	if (!revs->tree_objects)
 		return;
+	if (!obj)
+		die("bad tree object");
 	if (obj->flags & (UNINTERESTING | SEEN))
 		return;
 	if (parse_tree(tree) < 0)
-- 
1.5.4.1.g96b77

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