input/archive: don't initialize input_stream.ready

src/archive/bz2_archive_plugin.c

@@ -170,6 +170,7 @@ bz2_open_stream(struct archive_file *file, struct input_stream *is,
 	is->plugin = &bz2_inputplugin;
 	//insert back reference
 	is->data = bis;
+	is->ready = true;
 	is->seekable = false;
 
 	if (!bz2_alloc(bis, error_r)) {

src/archive/iso9660_archive_plugin.c

@@ -185,6 +185,7 @@ iso9660_archive_open_stream(struct archive_file *file, struct input_stream *is,
 	is->plugin = &iso9660_input_plugin;
 	//insert back reference
 	is->data = iis;
+	is->ready = true;
 	//we are not seekable
 	is->seekable = false;
 

src/archive/zzip_archive_plugin.c

@@ -145,6 +145,7 @@ zzip_archive_open_stream(struct archive_file *file, struct input_stream *is,
 	is->plugin = &zzip_input_plugin;
 	//insert back reference
 	is->data = zis;
+	is->ready = true;
 	//we are seekable (but its not recommendent to do so)
 	is->seekable = true;
 

src/input/archive_input_plugin.c

@@ -71,8 +71,6 @@ input_archive_open(struct input_stream *is, const char *pathname,
 
 	if (!opened) {
 		archive_file_close(file);
-	} else {
-		is->ready = true;
 	}
 
 	return opened;