staging: speakup: fix redundant return in void functions

Signed-off-by: Domagoj Trsan <domagoj.trsan@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/speakup/buffers.c

@@ -101,6 +101,5 @@ EXPORT_SYMBOL_GPL(synth_buffer_peek);
 void synth_buffer_clear(void)
 {
 	buff_in = buff_out = synth_buffer;
-	return;
 }
 EXPORT_SYMBOL_GPL(synth_buffer_clear);

drivers/staging/speakup/main.c

@@ -1940,7 +1940,6 @@ static void speakup_goto(struct vc_data *vc)
 	}
 	synth_printf("%s\n", spk_msg_get(MSG_GOTO));
 	spk_special_handler = handle_goto;
-	return;
 }
 
 static void speakup_help(struct vc_data *vc)

drivers/staging/speakup/varhandlers.c

@@ -112,7 +112,6 @@ void speakup_register_var(struct var_t *var)
 	default:
 		break;
 	}
-	return;
 }
 
 void speakup_unregister_var(enum var_id_t var_id)