Allow geocache placer to be empty in GPX read.

diff --git a/gpx.c b/gpx.c
index c287bc74602a281ffa57030be1a0de5ce363d790..1ffc2231990e0e0b350996e1740797eea176a2ef 100644 (file)
--- a/gpx.c
+++ b/gpx.c
@@ -650,7 +650,7 @@ gpx_start(void *data, const XML_Char *xml_el, const XML_Char **xml_attr)
                tag_cache_desc(attr);
                break;
        case tt_cache_placer:
-               if (0 == strcmp(attr[0], "id")) {
+               if (*attr && (0 == strcmp(attr[0], "id"))) {
                        wpt_tmp->gc_data.placer_id = atoi(attr[1]);
                }
        default: