controller: Fix another SSE stream leak
controller: Fix another SSE stream leak

Signed-off-by: Lewis Marshall <748e1641a368164906d4a0c0e3965345453dcc93@lmars.net>

clifff/flynn,technosophos/flynn,flynn/flynn,GrimDerp/flynn,pkdevbox/flynn,justintung/flynn,Brandywine2161/flynn,clifff/flynn,technosophos/flynn,lmars/flynn,flynn/flynn,technosophos/flynn,felixrieseberg/flynn,lmars/flynn,justintung/flynn,technosophos/flynn,justintung/flynn,supermario/flynn,tonicbupt/flynn,Brandywine2161/flynn,pkdevbox/flynn,josephglanville/flynn,whouses/flynn,benbjohnson/flynn,jzila/flynn,justintung/flynn,ozum/flynn,schatt/flynn,TribeMedia/flynn,shads196770/flynn,rikur/flynn,TribeMedia/flynn,rikur/flynn,whouses/flynn,lmars/flynn,shads196770/flynn,rikur/flynn,ozum/flynn,pkdevbox/flynn,rikur/flynn,philiplb/flynn,clifff/flynn,tonicbupt/flynn,philiplb/flynn,josephglanville/flynn,TribeMedia/flynn,supermario/flynn,rikur/flynn,Brandywine2161/flynn,josephglanville/flynn,kgrz/flynn,benbjohnson/flynn,jzila/flynn,GrimDerp/flynn,shads196770/flynn,schatt/flynn,philiplb/flynn,shads196770/flynn,schatt/flynn,philiplb/flynn,lmars/flynn,tonicbupt/flynn,benbjohnson/flynn,GrimDerp/flynn,tonicbupt/flynn,flynn/flynn,ozum/flynn,GrimDerp/flynn,kgrz/flynn,clifff/flynn,ozum/flynn,clifff/flynn,TribeMedia/flynn,kgrz/flynn,schatt/flynn,Brandywine2161/flynn,kgrz/flynn,whouses/flynn,technosophos/flynn,kgrz/flynn,felixrieseberg/flynn,benbjohnson/flynn,felixrieseberg/flynn,pkdevbox/flynn,supermario/flynn,philiplb/flynn,pkdevbox/flynn,josephglanville/flynn,whouses/flynn,flynn/flynn,clifff/flynn,shads196770/flynn,GrimDerp/flynn,schatt/flynn,jzila/flynn,felixrieseberg/flynn,whouses/flynn,shads196770/flynn,TribeMedia/flynn,justintung/flynn,jzila/flynn,supermario/flynn,schatt/flynn,rikur/flynn,supermario/flynn,benbjohnson/flynn,josephglanville/flynn,lmars/flynn,TribeMedia/flynn,Brandywine2161/flynn,benbjohnson/flynn,tonicbupt/flynn,GrimDerp/flynn,ozum/flynn,jzila/flynn,pkdevbox/flynn,whouses/flynn,justintung/flynn,supermario/flynn,jzila/flynn,kgrz/flynn,flynn/flynn,felixrieseberg/flynn,ozum/flynn,josephglanville/flynn,Brandywine2161/flynn