ghostpad: fix g_return_* with new query
ghostpad: fix g_return_* with new query

cfoch/gstreamer,ensonic/gstreamer,mparis/gstreamer,jpakkane/gstreamer,mparis/gstreamer,surround-io/gstreamer,surround-io/gstreamer,justinjoy/gstreamer,krichter722/gstreamer,cfoch/gstreamer,centricular/gstreamer,shelsonjava/gstreamer,krichter722/gstreamer,shelsonjava/gstreamer,StreamUtils/gstreamer,cfoch/gstreamer,StreamUtils/gstreamer,shelsonjava/gstreamer,krieger-od/gstreamer,krieger-od/gstreamer,collects/gstreamer,mparis/gstreamer,ensonic/gstreamer,lovebug356/gstreamer,jpakkane/gstreamer,mparis/gstreamer,cablelabs/gstreamer,centricular/gstreamer,krichter722/gstreamer,justinjoy/gstreamer,StreamUtils/gstreamer,lubosz/gstreamer,justinjoy/gstreamer,Lachann/gstreamer,StreamUtils/gstreamer,jpxiong/gstreamer,ensonic/gstreamer,jpxiong/gstreamer,lovebug356/gstreamer,centricular/gstreamer,surround-io/gstreamer,centricular/gstreamer,jpxiong/gstreamer,krichter722/gstreamer,surround-io/gstreamer,lovebug356/gstreamer,StreamUtils/gstreamer,lubosz/gstreamer,collects/gstreamer,krieger-od/gstreamer,centricular/gstreamer,Lachann/gstreamer,Lachann/gstreamer,jpakkane/gstreamer,lovebug356/gstreamer,krieger-od/gstreamer,lubosz/gstreamer,shelsonjava/gstreamer,collects/gstreamer,krieger-od/gstreamer,Lachann/gstreamer,lubosz/gstreamer,cablelabs/gstreamer,cfoch/gstreamer,Lachann/gstreamer,justinjoy/gstreamer,ensonic/gstreamer,mparis/gstreamer,krichter722/gstreamer,jpakkane/gstreamer,cablelabs/gstreamer,jpxiong/gstreamer,lubosz/gstreamer,surround-io/gstreamer,collects/gstreamer,jpxiong/gstreamer,shelsonjava/gstreamer,cablelabs/gstreamer,cfoch/gstreamer,collects/gstreamer,jpakkane/gstreamer,justinjoy/gstreamer,ensonic/gstreamer,lovebug356/gstreamer,cablelabs/gstreamer