From: Johannes Schindelin <Johannes.Schindelin@gmx.de>
Date: Sun, 7 May 2006 15:42:37 +0000 (+0200)
Subject: Fix crash when reading the empty tree
X-Git-Tag: v1.4.0-rc1~45^2~2
X-Git-Url: https://git.verplant.org/?a=commitdiff_plain;h=b6c4a480b3161effaa3578df91d8cdc83044d7b6;p=git.git

Fix crash when reading the empty tree

cvsimport needs to call git-read-tree without arguments to create an empty
tree.

Signed-off-by: Johannes Schindelin <Johannes.Schindelin@gmx.de>
Signed-off-by: Junio C Hamano <junkio@cox.net>
---

diff --git a/read-tree.c b/read-tree.c
index 067fb95e..49436bf9 100644
--- a/read-tree.c
+++ b/read-tree.c
@@ -881,8 +881,8 @@ int main(int argc, char **argv)
 	 * valid cache-tree because the index must match exactly
 	 * what came from the tree.
 	 */
-	if (trees->item && (!merge || (stage == 2))) {
-		cache_tree_free(&active_cache_tree);		
+	if (trees && trees->item && (!merge || (stage == 2))) {
+		cache_tree_free(&active_cache_tree);
 		prime_cache_tree();
 	}