modetest: Fix to check return value of asprintf()

There is warning about ignoring return value of 'asprintf'. Fix to
check return value of asprintf().

Signed-off-by: Seung-Woo Kim <sw0312.kim@samsung.com>
Reviewed-by: Eric Engestrom <eric.engestrom@imgtec.com>

diff --git a/tests/modetest/modetest.c b/tests/modetest/modetest.c
index 62d9332..0773bd0 100644 (file)
--- a/tests/modetest/modetest.c
+++ b/tests/modetest/modetest.c
@@ -656,10 +656,13 @@ static struct resources *get_resources(struct device *dev)
        for (i = 0; i < res->res->count_connectors; i++) {
                struct connector *connector = &res->connectors[i];
                drmModeConnector *conn = connector->connector;
+               int num;
 
-               asprintf(&connector->name, "%s-%u",
+               num = asprintf(&connector->name, "%s-%u",
                         util_lookup_connector_type_name(conn->connector_type),
                         conn->connector_type_id);
+               if (num < 0)
+                       goto error;
        }
 
 #define get_properties(_res, __res, type, Type)                                        \