From 6f6365fbac2d6bcf6867c633d3ec33af08b5b219 Mon Sep 17 00:00:00 2001
From: "Kim, Milo" <Milo.Kim@ti.com>
Date: Tue, 21 Aug 2012 17:03:58 +0800
Subject: leds-lp5523: change the return type of lp5523_set_mode()

The return value of this function is not handled any place, so
make it as void type.

And three if-statements are replaced with switch-statements.

Signed-off-by: Milo(Woogyom) Kim <milo.kim@ti.com>
Signed-off-by: Bryan Wu <bryan.wu@canonical.com>

diff --git a/drivers/leds/leds-lp5523.c b/drivers/leds/leds-lp5523.c
index 2fd5689..a144954 100644
--- a/drivers/leds/leds-lp5523.c
+++ b/drivers/leds/leds-lp5523.c
@@ -150,7 +150,7 @@ static inline struct lp5523_chip *led_to_lp5523(struct lp5523_led *led)
 			    leds[led->id]);
 }
 
-static int lp5523_set_mode(struct lp5523_engine *engine, u8 mode);
+static void lp5523_set_mode(struct lp5523_engine *engine, u8 mode);
 static int lp5523_set_engine_mode(struct lp5523_engine *engine, u8 mode);
 static int lp5523_load_program(struct lp5523_engine *engine, const u8 *pattern);
 
@@ -789,26 +789,28 @@ static void lp5523_unregister_sysfs(struct i2c_client *client)
 /*--------------------------------------------------------------*/
 /*			Set chip operating mode			*/
 /*--------------------------------------------------------------*/
-static int lp5523_set_mode(struct lp5523_engine *engine, u8 mode)
+static void lp5523_set_mode(struct lp5523_engine *engine, u8 mode)
 {
-	int ret = 0;
-
 	/* if in that mode already do nothing, except for run */
 	if (mode == engine->mode && mode != LP5523_CMD_RUN)
-		return 0;
+		return;
 
-	if (mode == LP5523_CMD_RUN) {
-		ret = lp5523_run_program(engine);
-	} else if (mode == LP5523_CMD_LOAD) {
+	switch (mode) {
+	case LP5523_CMD_RUN:
+		lp5523_run_program(engine);
+		break;
+	case LP5523_CMD_LOAD:
 		lp5523_set_engine_mode(engine, LP5523_CMD_DISABLED);
 		lp5523_set_engine_mode(engine, LP5523_CMD_LOAD);
-	} else if (mode == LP5523_CMD_DISABLED) {
+		break;
+	case LP5523_CMD_DISABLED:
 		lp5523_set_engine_mode(engine, LP5523_CMD_DISABLED);
+		break;
+	default:
+		return;
 	}
 
 	engine->mode = mode;
-
-	return ret;
 }
 
 /*--------------------------------------------------------------*/
-- 
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