Fix segfault on ppc when browsing tree

1 files changed, 1 insertions, 1 deletions

diff --git a/ui-blob.c b/ui-blob.c
index 2ccd31d..89330ce 100644
--- a/ui-blob.c
+++ b/ui-blob.c
@@ -29,49 +29,49 @@ void cgit_print_blob(const char *hex, char *path, const char *head)
 	enum object_type type;
 	char *buf;
 	unsigned long size;
 	struct commit *commit;
 	const char *paths[] = {path, NULL};
 
 	if (hex) {
 		if (get_sha1_hex(hex, sha1)){
 			cgit_print_error(fmt("Bad hex value: %s", hex));
 			return;
 		}
 	} else {
 		if (get_sha1(head,sha1)) {
 			cgit_print_error(fmt("Bad ref: %s", head));
 			return;
 		}
 	}
 
 	type = sha1_object_info(sha1, &size);
 
 	if((!hex) && type == OBJ_COMMIT && path) {
 		commit = lookup_commit_reference(sha1);
 		match_path = path;
 		matched_sha1 = sha1;
-		read_tree_recursive(commit->tree, NULL, 0, 0, paths, walk_tree, NULL);
+		read_tree_recursive(commit->tree, "", 0, 0, paths, walk_tree, NULL);
 		type = sha1_object_info(sha1,&size);
 	}
 
 	if (type == OBJ_BAD) {
 		cgit_print_error(fmt("Bad object name: %s", hex));
 		return;
 	}
 
 	buf = read_sha1_file(sha1, &type, &size);
 	if (!buf) {
 		cgit_print_error(fmt("Error reading object %s", hex));
 		return;
 	}
 
 	buf[size] = '\0';
 	ctx.page.mimetype = ctx.qry.mimetype;
 	if (!ctx.page.mimetype) {
 		if (buffer_is_binary(buf, size))
 			ctx.page.mimetype = "application/octet-stream";
 		else
 			ctx.page.mimetype = "text/plain";
 	}
 	ctx.page.filename = path;
 	cgit_print_http_headers(&ctx);