gc: do not explode objects which will be immediately pruned

diff --git a/fast-import.c b/fast-import.c
index 6cd19e580ba710d03682fcaff997fa7e0e555691..a85275dc682d2bb8068f003b8281c3933488f010 100644 (file)
--- a/fast-import.c
+++ b/fast-import.c
@@ -1641,6 +1641,8 @@ static int tree_content_get(
                n = slash1 - p;
        else
                n = strlen(p);
+       if (!n)
+               die("Empty path component found in input");
 
        if (!root->tree)
                load_tree(root);
@@ -2712,7 +2714,7 @@ static void parse_new_tag(void)
        /* Obtain the new tag name from the rest of our command */
        sp = strchr(command_buf.buf, ' ') + 1;
        t = pool_alloc(sizeof(struct tag));
-       t->next_tag = NULL;
+       memset(t, 0, sizeof(struct tag));
        t->name = pool_strdup(sp);
        if (last_tag)
                last_tag->next_tag = t;
@@ -3028,6 +3030,8 @@ static void parse_ls(struct branch *b)
                store_tree(&leaf);
 
        print_ls(leaf.versions[1].mode, leaf.versions[1].sha1, p);
+       if (leaf.tree)
+               release_tree_content_recursive(leaf.tree);
        if (!b || root != &b->branch_tree)
                release_tree_entry(root);
 }