set data to NULL in case of error to avoid a possible crash
set data to NULL in case of error to avoid a possible crash

Distrotech/DirectFB,sklnet/DirectFB,sklnet/DirectFB,dfbdok/DirectFB1,kevleyski/DirectFB-1,dfbdok/DirectFB1,kaostao/directfb,djbclark/directfb-core-DirectFB,Distrotech/DirectFB,DirectFB/directfb,kevleyski/DirectFB-1,dfbdok/DirectFB1,DirectFB/directfb,sklnet/DirectFB,mtsekm/test,mtsekm/test,jcdubois/DirectFB,lancebaiyouview/DirectFB,lancebaiyouview/DirectFB,kevleyski/directfb,kaostao/directfb,djbclark/directfb-core-DirectFB,kevleyski/DirectFB-1,kevleyski/directfb,DirectFB/directfb,djbclark/directfb-core-DirectFB,kevleyski/DirectFB-1,deniskropp/DirectFB,jcdubois/DirectFB,sklnet/DirectFB,kaostao/directfb,deniskropp/DirectFB,mtsekm/test,djbclark/directfb-core-DirectFB,deniskropp/DirectFB,lancebaiyouview/DirectFB,deniskropp/DirectFB,kevleyski/directfb,lancebaiyouview/DirectFB,jcdubois/DirectFB,kevleyski/directfb,Distrotech/DirectFB