pad: unlock before freeing the cache to avoid deadlock
pad: unlock before freeing the cache to avoid deadlock

https://bugzilla.gnome.org/show_bug.cgi?id=648199

jpxiong/gstreamer,krichter722/gstreamer,lovebug356/gstreamer,Distrotech/gstreamer,cablelabs/gstreamer,ylatuya/gstreamer,lovebug356/gstreamer,krichter722/gstreamer,centricular/gstreamer,centricular/gstreamer,lubosz/gstreamer,krichter722/gstreamer,justinjoy/gstreamer,shelsonjava/gstreamer,ylatuya/gstreamer,ylatuya/gstreamer,drothlis/gstreamer,cfoch/gstreamer,krieger-od/gstreamer,magcius/gstreamer,ahmedammar/platform_external_gst_gstreamer,magcius/gstreamer,justinjoy/gstreamer,centricular/gstreamer,drothlis/gstreamer,cablelabs/gstreamer,ylatuya/gstreamer,Distrotech/gstreamer,lovebug356/gstreamer,ylatuya/gstreamer,lubosz/gstreamer,StreamUtils/gstreamer,cablelabs/gstreamer,mparis/gstreamer,jpxiong/gstreamer,Lachann/gstreamer,magcius/gstreamer,ensonic/gstreamer,ahmedammar/platform_external_gst_gstreamer,mparis/gstreamer,shelsonjava/gstreamer,surround-io/gstreamer,centricular/gstreamer,drothlis/gstreamer,krichter722/gstreamer,krieger-od/gstreamer,lubosz/gstreamer,collects/gstreamer,drothlis/gstreamer,Lachann/gstreamer,justinjoy/gstreamer,jpxiong/gstreamer,ahmedammar/platform_external_gst_gstreamer,shelsonjava/gstreamer,Distrotech/gstreamer,justinjoy/gstreamer,ensonic/gstreamer,collects/gstreamer,ahmedammar/platform_external_gst_gstreamer,mparis/gstreamer,ensonic/gstreamer,krichter722/gstreamer,StreamUtils/gstreamer,surround-io/gstreamer,mparis/gstreamer,Lachann/gstreamer,centricular/gstreamer,lovebug356/gstreamer,surround-io/gstreamer,cfoch/gstreamer,cablelabs/gstreamer,krieger-od/gstreamer,lubosz/gstreamer,krieger-od/gstreamer,jpakkane/gstreamer,collects/gstreamer,ensonic/gstreamer,jpakkane/gstreamer,jpxiong/gstreamer,lovebug356/gstreamer,magcius/gstreamer,jpakkane/gstreamer,collects/gstreamer,magcius/gstreamer,shelsonjava/gstreamer,Distrotech/gstreamer,mparis/gstreamer,drothlis/gstreamer,StreamUtils/gstreamer,cfoch/gstreamer,Lachann/gstreamer,ahmedammar/platform_external_gst_gstreamer,jpakkane/gstreamer,StreamUtils/gstreamer,StreamUtils/gstreamer,lubosz/gstreamer,shelsonjava/gstreamer,cfoch/gstreamer,jpakkane/gstreamer,cfoch/gstreamer,cablelabs/gstreamer,ensonic/gstreamer,justinjoy/gstreamer,collects/gstreamer,surround-io/gstreamer,krieger-od/gstreamer,Lachann/gstreamer,jpxiong/gstreamer,surround-io/gstreamer,Distrotech/gstreamer