Fix potential memleak.

modules/audio_output/oss.c

@@ -299,6 +299,7 @@ static int Open( vlc_object_t *p_this )
     if( p_sys->i_fd < 0 )
     {
         msg_Err( p_aout, "cannot open audio device (%s)", psz_device );
+        free( psz_device );
         free( p_sys );
         return VLC_EGENERIC;
     }

modules/gui/qt4/components/extended_panels.cpp

@@ -279,7 +279,10 @@ void ExtVideo::ChangeVFiltersString( char *psz_name, bool b_add )
             psz_parser = psz_string;
             if( asprintf( &psz_string, ( *psz_string ) ? "%s:%s" : "%s%s",
                             psz_string, psz_name ) == -1 )
+            {
+                free( psz_parser );
                 return;
+            }
             free( psz_parser );
         }
         else