cmd_usage(): simplify return code handling

Lots of code use this construct:

	cmd_usage(cmdtp);
	return 1;

Change cmd_usage() let it return 1 - then we can replace all these
ocurrances by

	return cmd_usage(cmdtp);

This fixes a few places with incorrect return code handling, too.

Signed-off-by: Wolfgang Denk <wd@denx.de>

33 files changed, 140 insertions, 250 deletions

diff --git a/board/amcc/acadia/cmd_acadia.c b/board/amcc/acadia/cmd_acadia.c
index 86f86e2..6936e51 100644
--- a/board/amcc/acadia/cmd_acadia.c
+++ b/board/amcc/acadia/cmd_acadia.c
@@ -44,10 +44,8 @@ static int do_bootstrap(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[
 	u8 *buf;
 	int cpu_freq;
 
-	if (argc < 3) {
-		cmd_usage(cmdtp);
-		return 1;
-	}
+	if (argc < 3)
+		return cmd_usage(cmdtp);
 
 	cpu_freq = simple_strtol(argv[1], NULL, 10);
 	if (cpu_freq != 267) {
diff --git a/board/amcc/luan/luan.c b/board/amcc/luan/luan.c
index c0368c0..c09d730 100644
--- a/board/amcc/luan/luan.c
+++ b/board/amcc/luan/luan.c
@@ -223,8 +223,7 @@ int do_l2cache( cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[] )
 			l2cache_status() ? "ON" : "OFF");
 		return 0;
 	default:
-		cmd_usage(cmdtp);
-		return 1;
+		return cmd_usage(cmdtp);
 	}
 
 	return  0;
diff --git a/board/amcc/makalu/cmd_pll.c b/board/amcc/makalu/cmd_pll.c
index 3c0dc5f..7f75ad7 100644
--- a/board/amcc/makalu/cmd_pll.c
+++ b/board/amcc/makalu/cmd_pll.c
@@ -182,14 +182,14 @@ do_pll_alter (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	char c = '\0';
 	pll_freq_t pll_freq;
-	if (argc < 2) {
-		cmd_usage(cmdtp);
-		goto ret;
-	}
 
-	for (pll_freq = PLL_ebc20; pll_freq < PLL_TOTAL; pll_freq++)
+	if (argc < 2)
+		return cmd_usage(cmdtp);
+
+	for (pll_freq = PLL_ebc20; pll_freq < PLL_TOTAL; pll_freq++) {
 		if (!strcmp(pll_name[pll_freq], argv[1]))
 			break;
+	}
 
 	switch (pll_freq) {
 	case PLL_ebc20:
@@ -223,8 +223,7 @@ do_pll_alter (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 
 	default:
 		printf("Invalid options\n\n");
-		cmd_usage(cmdtp);
-		goto ret;
+		return cmd_usage(cmdtp);
 	}
 
 	printf("PLL set to %s, "
diff --git a/board/amcc/taihu/lcd.c b/board/amcc/taihu/lcd.c
index 595dee3..9b2afda 100644
--- a/board/amcc/taihu/lcd.c
+++ b/board/amcc/taihu/lcd.c
@@ -139,10 +139,9 @@ static int do_lcd_clear (cmd_tbl_t * cmdtp, int flag, int argc, char * const arg
 
 static int do_lcd_puts (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 {
-	if (argc < 2) {
-		cmd_usage(cmdtp);
-		return 1;
-	}
+	if (argc < 2)
+		return cmd_usage(cmdtp);
+
 	lcd_puts(argv[1]);
 
 	return 0;
@@ -150,10 +149,9 @@ static int do_lcd_puts (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv
 
 static int do_lcd_putc (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 {
-	if (argc < 2) {
-		cmd_usage(cmdtp);
-		return 1;
-	}
+	if (argc < 2)
+		return cmd_usage(cmdtp);
+
 	lcd_putc((char)argv[1][0]);
 
 	return 0;
@@ -165,10 +163,8 @@ static int do_lcd_cur (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[
 	ulong dir;
 	char cur_addr;
 
-	if (argc < 3) {
-		cmd_usage(cmdtp);
-		return 1;
-	}
+	if (argc < 3)
+		return cmd_usage(cmdtp);
 
 	count = simple_strtoul(argv[1], NULL, 16);
 	if (count > 31) {
diff --git a/board/amcc/taihu/taihu.c b/board/amcc/taihu/taihu.c
index 1682cf7..dd2aba5 100644
--- a/board/amcc/taihu/taihu.c
+++ b/board/amcc/taihu/taihu.c
@@ -101,16 +101,12 @@ static int do_led_ctl(cmd_tbl_t* cmd_tp, int flags, int argc, char * const argv[
 {
 	int led_no;
 
-	if (argc != 3) {
-		cmd_usage(cmd_tp);
-		return -1;
-	}
+	if (argc != 3)
+		return cmd_usage(cmd_tp);
 
 	led_no = simple_strtoul(argv[1], NULL, 16);
-	if (led_no != 1 && led_no != 2) {
-		cmd_usage(cmd_tp);
-		return -1;
-	}
+	if (led_no != 1 && led_no != 2)
+		return cmd_usage(cmd_tp);
 
 	if (strcmp(argv[2],"off") == 0x0) {
 		if (led_no == 1)
@@ -123,8 +119,7 @@ static int do_led_ctl(cmd_tbl_t* cmd_tp, int flags, int argc, char * const argv[
 		else
 			gpio_write_bit(31, 0);
 	} else {
-		cmd_usage(cmd_tp);
-		return -1;
+		return cmd_usage(cmd_tp);
 	}
 
 	return 0;
diff --git a/board/amcc/taishan/lcd.c b/board/amcc/taishan/lcd.c
index 6a049df..7f7730a 100644
--- a/board/amcc/taishan/lcd.c
+++ b/board/amcc/taishan/lcd.c
@@ -166,19 +166,17 @@ static int do_lcd_clear(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv
 }
 static int do_lcd_puts(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 {
-	if (argc < 2) {
-		cmd_usage(cmdtp);
-		return 1;
-	}
+	if (argc < 2)
+		return cmd_usage(cmdtp);
+
 	lcd_puts(argv[1]);
 	return 0;
 }
 static int do_lcd_putc(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 {
-	if (argc < 2) {
-		cmd_usage(cmdtp);
-		return 1;
-	}
+	if (argc < 2)
+		return cmd_usage(cmdtp);
+
 	lcd_putc((char)argv[1][0]);
 	return 0;
 }
@@ -188,10 +186,8 @@ static int do_lcd_cur(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[]
 	ulong dir;
 	char cur_addr;
 
-	if (argc < 3) {
-		cmd_usage(cmdtp);
-		return 1;
-	}
+	if (argc < 3)
+		return cmd_usage(cmdtp);
 
 	count = simple_strtoul(argv[1], NULL, 16);
 	if (count > 31) {
diff --git a/board/amcc/yucca/cmd_yucca.c b/board/amcc/yucca/cmd_yucca.c
index cde13e4..e9cd333 100644
--- a/board/amcc/yucca/cmd_yucca.c
+++ b/board/amcc/yucca/cmd_yucca.c
@@ -58,10 +58,8 @@ static int setBootStrapClock(cmd_tbl_t *cmdtp, int incrflag, int flag,
 	char plbClock[4];
 	char pcixClock[4];
 
-	if (argc < 3) {
-		cmd_usage(cmdtp);
-		return 1;
-	}
+	if (argc < 3)
+		return cmd_usage(cmdtp);
 
 	if (strcmp(argv[2], "prom0") == 0)
 		chip = IIC0_BOOTPROM_ADDR;
diff --git a/board/barco/barco.c b/board/barco/barco.c
index b8d968b..6ce3480 100644
--- a/board/barco/barco.c
+++ b/board/barco/barco.c
@@ -290,12 +290,6 @@ void barcobcd_boot (void)
 
 int barcobcd_boot_image (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
-#if 0
-	if (argc > 1) {
-		cmd_usage(cmdtp);
-		return 1;
-	}
-#endif
 	barcobcd_boot ();
 
 	return 0;
diff --git a/board/digsy_mtc/cmd_mtc.c b/board/digsy_mtc/cmd_mtc.c
index 621980d..ba0c367 100644
--- a/board/digsy_mtc/cmd_mtc.c
+++ b/board/digsy_mtc/cmd_mtc.c
@@ -75,10 +75,8 @@ static int do_mtc_led(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 	int err;
 	int i;
 
-	if (argc < 2) {
-		cmd_usage(cmdtp);
-		return -1;
-	}
+	if (argc < 2)
+		return cmd_usage(cmdtp);
 
 	memset(&pcmd, 0, sizeof(pcmd));
 	memset(&prx, 0, sizeof(prx));
@@ -149,10 +147,8 @@ static int do_mtc_digout(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv
 	int err;
 	uchar channel_mask = 0;
 
-	if (argc < 3) {
-		cmd_usage(cmdtp);
-		return -1;
-	}
+	if (argc < 3)
+		return cmd_usage(cmdtp);
 
 	if (strncmp(argv[1], "on", 2) == 0)
 		channel_mask |= 1;
@@ -178,10 +174,8 @@ static int do_mtc_digin(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[
 	int err;
 	uchar channel_num = 0;
 
-	if (argc < 2) {
-		cmd_usage(cmdtp);
-		return -1;
-	}
+	if (argc < 2)
+		return cmd_usage(cmdtp);
 
 	channel_num = simple_strtol(argv[1], NULL, 10);
 	if ((channel_num != 1) && (channel_num != 2)) {
@@ -332,8 +326,7 @@ int cmd_mtc(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 		return c->cmd(c, flag, argc, argv);
 	} else {
 		/* Unrecognized command */
-		cmd_usage(cmdtp);
-		return 1;
+		return cmd_usage(cmdtp);
 	}
 
 	return err;
diff --git a/board/esd/common/lcd.c b/board/esd/common/lcd.c
index 9109b64..3dfbf3b 100644
--- a/board/esd/common/lcd.c
+++ b/board/esd/common/lcd.c
@@ -345,10 +345,8 @@ int do_esdbmp(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 #ifdef CONFIG_VIDEO_SM501
 	char *str;
 #endif
-	if (argc != 2) {
-		cmd_usage(cmdtp);
-		return 1;
-	}
+	if (argc != 2)
+		return cmd_usage(cmdtp);
 
 	addr = simple_strtoul(argv[1], NULL, 16);
 
diff --git a/board/esd/dasa_sim/cmd_dasa_sim.c b/board/esd/dasa_sim/cmd_dasa_sim.c
index aa74376..4946538 100644
--- a/board/esd/dasa_sim/cmd_dasa_sim.c
+++ b/board/esd/dasa_sim/cmd_dasa_sim.c
@@ -221,9 +221,7 @@ int do_pci9054 (cmd_tbl_t * cmdtp, int flag, int argc,
 		return 0;
 	}
 
-	cmd_usage(cmdtp);
-	return 1;
-
+	return cmd_usage(cmdtp);
 }
 
 U_BOOT_CMD(
diff --git a/board/freescale/common/sys_eeprom.c b/board/freescale/common/sys_eeprom.c
index 5a8f4f5..3929ad0 100644
--- a/board/freescale/common/sys_eeprom.c
+++ b/board/freescale/common/sys_eeprom.c
@@ -351,8 +351,7 @@ int do_mac(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 			prog_eeprom();
 			break;
 		default:
-			cmd_usage(cmdtp);
-			break;
+			return cmd_usage(cmdtp);
 		}
 
 		return 0;
@@ -388,8 +387,7 @@ int do_mac(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 		break;
 	case 'h':	/* help */
 	default:
-		cmd_usage(cmdtp);
-		break;
+		return cmd_usage(cmdtp);
 	}
 
 	return 0;
diff --git a/board/freescale/mpc8610hpcd/mpc8610hpcd_diu.c b/board/freescale/mpc8610hpcd/mpc8610hpcd_diu.c
index 0b7f787..781a7c8 100644
--- a/board/freescale/mpc8610hpcd/mpc8610hpcd_diu.c
+++ b/board/freescale/mpc8610hpcd/mpc8610hpcd_diu.c
@@ -115,10 +115,8 @@ int mpc8610diu_init_show_bmp(cmd_tbl_t *cmdtp,
 {
 	unsigned int addr;
 
-	if (argc < 2) {
-		cmd_usage(cmdtp);
-		return 1;
-	}
+	if (argc < 2)
+		return cmd_usage(cmdtp);
 
 	if (!strncmp(argv[1],"init",4)) {
 #if defined(CONFIG_VIDEO) || defined(CONFIG_CFB_CONSOLE)
diff --git a/board/hymod/bsp.c b/board/hymod/bsp.c
index 5dd0311..9a92941 100644
--- a/board/hymod/bsp.c
+++ b/board/hymod/bsp.c
@@ -272,8 +272,7 @@ do_fpga (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 		break;
 	}
 
-	cmd_usage(cmdtp);
-	return 1;
+	return cmd_usage(cmdtp);
 }
 U_BOOT_CMD(
 	fpga,	6,	1,	do_fpga,
@@ -324,8 +323,7 @@ do_eecl (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 		/* fall through ... */
 
 	default:
-		cmd_usage(cmdtp);
-		return 1;
+		return cmd_usage(cmdtp);
 	}
 
 	memset (data, 0, HYMOD_EEPROM_SIZE);
diff --git a/board/inka4x0/inkadiag.c b/board/inka4x0/inkadiag.c
index 637bb5a..cf82f61 100644
--- a/board/inka4x0/inkadiag.c
+++ b/board/inka4x0/inkadiag.c
@@ -168,8 +168,7 @@ static int do_inkadiag_io(cmd_tbl_t *cmdtp, int flag, int argc,
 		printf("exit code: 0x%X\n", val);
 		return 0;
 	default:
-		cmd_usage(cmdtp);
-		break;
+		return cmd_usage(cmdtp);
 	}
 
 	return -1;
@@ -244,10 +243,8 @@ static int do_inkadiag_serial(cmd_tbl_t *cmdtp, int flag, int argc,
 	int combrd, baudrate, i, j, len;
 	int address;
 
-	if (argc < 5) {
-		cmd_usage(cmdtp);
-		return 1;
-	}
+	if (argc < 5)
+		return cmd_usage(cmdtp);
 
 	argc--;
 	argv++;
@@ -394,10 +391,8 @@ static int do_inkadiag_buzzer(cmd_tbl_t *cmdtp, int flag, int argc,
 	unsigned int period, freq;
 	int prev, i;
 
-	if (argc != 3) {
-		cmd_usage(cmdtp);
-		return 1;
-	}
+	if (argc != 3)
+		return cmd_usage(cmdtp);
 
 	argc--;
 	argv++;
@@ -474,8 +469,7 @@ static int do_inkadiag(cmd_tbl_t *cmdtp, int flag, int argc,
 		return c->cmd(c, flag, argc, argv);
 	} else {
 		/* Unrecognized command */
-		cmd_usage(cmdtp);
-		return 1;
+		return cmd_usage(cmdtp);
 	}
 }
 
diff --git a/board/keymile/km_arm/km_arm.c b/board/keymile/km_arm/km_arm.c
index 3a33b5a..d7cbd7a 100644
--- a/board/keymile/km_arm/km_arm.c
+++ b/board/keymile/km_arm/km_arm.c
@@ -186,10 +186,8 @@ int board_init(void)
 int do_spi_toggle(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	u32 tmp;
-	if (argc < 2) {
-		cmd_usage(cmdtp);
-		return 1;
-	}
+	if (argc < 2)
+		return cmd_usage(cmdtp);
 
 	if ((strcmp(argv[1], "off") == 0)) {
 		printf("SPI FLASH disabled, NAND enabled\n");
@@ -214,8 +212,7 @@ int do_spi_toggle(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 		tmp = readl(KW_GPIO0_BASE);
 		writel(tmp & (~FLASH_GPIO_PIN) , KW_GPIO0_BASE);
 	} else {
-		cmd_usage(cmdtp);
-		return 1;
+		return cmd_usage(cmdtp);
 	}
 
 	return 0;
diff --git a/board/lwmon/lwmon.c b/board/lwmon/lwmon.c
index 61a1e14..9d6c21f 100644
--- a/board/lwmon/lwmon.c
+++ b/board/lwmon/lwmon.c
@@ -845,8 +845,7 @@ int do_pic (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 	default:
 		break;
 	}
-	cmd_usage(cmdtp);
-	return 1;
+	return cmd_usage(cmdtp);
 }
 U_BOOT_CMD(
 	pic,	4,	1,	do_pic,
@@ -975,8 +974,7 @@ int do_lsb (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 	default:
 		break;
 	}
-	cmd_usage(cmdtp);
-	return 1;
+	return cmd_usage(cmdtp);
 }
 
 U_BOOT_CMD(
diff --git a/board/lwmon5/lwmon5.c b/board/lwmon5/lwmon5.c
index 3948c13..ec113e7 100644
--- a/board/lwmon5/lwmon5.c
+++ b/board/lwmon5/lwmon5.c
@@ -306,20 +306,15 @@ void hw_watchdog_reset(void)
 
 int do_eeprom_wp(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
-	if (argc < 2) {
-		cmd_usage(cmdtp);
-		return 1;
-	}
+	if (argc < 2)
+		return cmd_usage(cmdtp);
 
-	if ((strcmp(argv[1], "on") == 0)) {
+	if ((strcmp(argv[1], "on") == 0))
 		gpio_write_bit(CONFIG_SYS_GPIO_EEPROM_EXT_WP, 1);
-	} else if ((strcmp(argv[1], "off") == 0)) {
+	else if ((strcmp(argv[1], "off") == 0))
 		gpio_write_bit(CONFIG_SYS_GPIO_EEPROM_EXT_WP, 0);
-	} else {
-		cmd_usage(cmdtp);
-		return 1;
-	}
-
+	else
+		return cmd_usage(cmdtp);
 
 	return 0;
 }
diff --git a/board/mpl/common/common_util.c b/board/mpl/common/common_util.c
index a3722b2..b4343d8 100644
--- a/board/mpl/common/common_util.c
+++ b/board/mpl/common/common_util.c
@@ -528,8 +528,7 @@ int do_mplcommon(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 		return 0;
 	}
 #endif
-	cmd_usage(cmdtp);
-	return 1;
+	return cmd_usage(cmdtp);
 }
 
 
diff --git a/board/pcippc2/pcippc2.c b/board/pcippc2/pcippc2.c
index 199def4..4a91458 100644
--- a/board/pcippc2/pcippc2.c
+++ b/board/pcippc2/pcippc2.c
@@ -232,8 +232,7 @@ int do_wd (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 	default:
 		break;
 	}
-	cmd_usage(cmdtp);
-	return 1;
+	return cmd_usage(cmdtp);
 }
 
 U_BOOT_CMD(
diff --git a/board/pcs440ep/pcs440ep.c b/board/pcs440ep/pcs440ep.c
index d7adff2..a61e945 100644
--- a/board/pcs440ep/pcs440ep.c
+++ b/board/pcs440ep/pcs440ep.c
@@ -616,9 +616,8 @@ int do_sha1 (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 	int	rcode = -1;
 
 	if (argc < 2) {
-  usage:
-		cmd_usage(cmdtp);
-		return 1;
+usage:
+		return cmd_usage(cmdtp);
 	}
 
 	if (argc >= 3) {
diff --git a/board/pdm360ng/pdm360ng.c b/board/pdm360ng/pdm360ng.c
index 29a095d..e3abeb8 100644
--- a/board/pdm360ng/pdm360ng.c
+++ b/board/pdm360ng/pdm360ng.c
@@ -635,10 +635,8 @@ static int set_lcd_brightness(char *brightness)
 static int cmd_lcd_brightness(cmd_tbl_t *cmdtp, int flag,
 			      int argc, char * const argv[])
 {
-	if (argc < 2) {
-		cmd_usage(cmdtp);
-		return 1;
-	}
+	if (argc < 2)
+		return cmd_usage(cmdtp);
 
 	return set_lcd_brightness(argv[1]);
 }
diff --git a/board/pn62/cmd_pn62.c b/board/pn62/cmd_pn62.c
index 7329435..692160c 100644
--- a/board/pn62/cmd_pn62.c
+++ b/board/pn62/cmd_pn62.c
@@ -36,20 +36,20 @@ extern int do_bootm (cmd_tbl_t *, int, int, char *[]);
 /*
  * Command led: controls the various LEDs 0..11 on the PN62 card.
  */
-int do_led (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+int do_led(cmd_tbl_t * cmdtp, int flag, int argc, char *const argv[])
 {
-    unsigned int number, function;
+	unsigned int number, function;
 
-    if (argc != 3) {
-	cmd_usage(cmdtp);
-	return 1;
-    }
-    number = simple_strtoul(argv[1], NULL, 10);
-    if (number > PN62_LED_MAX)
-	return 1;
-    function = simple_strtoul(argv[2], NULL, 16);
-    set_led (number, function);
-    return 0;
+	if (argc != 3)
+		return cmd_usage(cmdtp);
+
+	number = simple_strtoul(argv[1], NULL, 10);
+	if (number > PN62_LED_MAX)
+		return 1;
+
+	function = simple_strtoul(argv[2], NULL, 16);
+	set_led(number, function);
+	return 0;
 }
 U_BOOT_CMD(
 	led    ,	3,	1,	do_led,
@@ -83,8 +83,7 @@ int do_loadpci (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 	addr = simple_strtoul(argv[1], NULL, 16);
 	break;
     default:
-       cmd_usage(cmdtp);
-	return 1;
+        return cmd_usage(cmdtp);
     }
 
     printf ("## Ready for image download ...\n");
diff --git a/board/prodrive/pdnb3/pdnb3.c b/board/prodrive/pdnb3/pdnb3.c
index 3f2deed..83b7914 100644
--- a/board/prodrive/pdnb3/pdnb3.c
+++ b/board/prodrive/pdnb3/pdnb3.c
@@ -214,10 +214,8 @@ int do_fpga(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	ulong addr;
 
-	if (argc < 2) {
-		cmd_usage(cmdtp);
-		return 1;
-	}
+	if (argc < 2)
+		return cmd_usage(cmdtp);
 
 	addr = simple_strtoul(argv[1], NULL, 16);
 
diff --git a/board/renesas/sh7785lcr/rtl8169_mac.c b/board/renesas/sh7785lcr/rtl8169_mac.c
index dae01ec..e15013f 100644
--- a/board/renesas/sh7785lcr/rtl8169_mac.c
+++ b/board/renesas/sh7785lcr/rtl8169_mac.c
@@ -304,10 +304,8 @@ int do_set_mac(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 	unsigned char mac[6];
 	char *s, *e;
 
-	if (argc != 2) {
-		cmd_usage(cmdtp);
-		return 1;
-	}
+	if (argc != 2)
+		return cmd_usage(cmdtp);
 
 	s = argv[1];
 
@@ -330,10 +328,8 @@ U_BOOT_CMD(
 
 int do_print_mac(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
-	if (argc != 1) {
-		cmd_usage(cmdtp);
-		return 1;
-	}
+	if (argc != 1)
+		return cmd_usage(cmdtp);
 
 	mac_read();
 
diff --git a/board/renesas/sh7785lcr/selfcheck.c b/board/renesas/sh7785lcr/selfcheck.c
index 44247c8..6d92c83 100644
--- a/board/renesas/sh7785lcr/selfcheck.c
+++ b/board/renesas/sh7785lcr/selfcheck.c
@@ -112,10 +112,8 @@ int do_hw_test(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	char *cmd;
 
-	if (argc != 2) {
-		cmd_usage(cmdtp);
-		return 1;
-	}
+	if (argc != 2)
+		return cmd_usage(cmdtp);
 
 	cmd = argv[1];
 	switch (cmd[0]) {
@@ -150,8 +148,7 @@ int do_hw_test(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 		test_net();
 		break;
 	default:
-		cmd_usage(cmdtp);
-		return 1;
+		return cmd_usage(cmdtp);
 	}
 
 	return 0;
diff --git a/board/siemens/common/fpga.c b/board/siemens/common/fpga.c
index 5660c09..ef8bfde 100644
--- a/board/siemens/common/fpga.c
+++ b/board/siemens/common/fpga.c
@@ -286,8 +286,7 @@ int do_fpga (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
     return 0;
 
  failure:
-    cmd_usage(cmdtp);
-    return 1;
+    return cmd_usage(cmdtp);
 }
 
 U_BOOT_CMD(
diff --git a/board/siemens/pcu_e/pcu_e.c b/board/siemens/pcu_e/pcu_e.c
index 14d75ea..9795284 100644
--- a/board/siemens/pcu_e/pcu_e.c
+++ b/board/siemens/pcu_e/pcu_e.c
@@ -399,8 +399,7 @@ int do_puma (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 	default:
 		break;
 	}
-	cmd_usage(cmdtp);
-	return 1;
+	return cmd_usage(cmdtp);
 }
 
 U_BOOT_CMD (puma, 4, 1, do_puma,
diff --git a/board/spear/common/spr_misc.c b/board/spear/common/spr_misc.c
index d99036b..0562222 100644
--- a/board/spear/common/spr_misc.c
+++ b/board/spear/common/spr_misc.c
@@ -215,10 +215,8 @@ int do_chip_config(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 	char *s, *e;
 	char i2c_mac[20];
 
-	if ((argc > 3) || (argc < 2)) {
-		cmd_usage(cmdtp);
-		return 1;
-	}
+	if ((argc > 3) || (argc < 2))
+		return cmd_usage(cmdtp);
 
 	if ((!strcmp(argv[1], "cpufreq")) || (!strcmp(argv[1], "ddrfreq"))) {
 
@@ -286,8 +284,7 @@ int do_chip_config(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 		return 0;
 	}
 
-	cmd_usage(cmdtp);
-	return 1;
+	return cmd_usage(cmdtp);
 }
 
 U_BOOT_CMD(chip_config, 3, 1, do_chip_config,
diff --git a/board/tqc/tqm5200/cmd_stk52xx.c b/board/tqc/tqm5200/cmd_stk52xx.c
index 0db7050..0789c58 100644
--- a/board/tqc/tqm5200/cmd_stk52xx.c
+++ b/board/tqc/tqm5200/cmd_stk52xx.c
@@ -327,8 +327,7 @@ static int cmd_sound(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 	switch (argc) {
 	case 0:
 	case 1:
-		cmd_usage(cmdtp);
-		return 1;
+		return cmd_usage(cmdtp);
 	case 2:
 		if (strncmp(argv[1],"saw",3) == 0) {
 			printf ("Play sawtooth\n");
@@ -342,8 +341,7 @@ static int cmd_sound(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 			return rcode;
 		}
 
-		cmd_usage(cmdtp);
-		return 1;
+		return cmd_usage(cmdtp);
 	case 3:
 		if (strncmp(argv[1],"saw",3) == 0) {
 			duration = simple_strtoul(argv[2], NULL, 10);
@@ -358,8 +356,7 @@ static int cmd_sound(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 						LEFT_RIGHT);
 			return rcode;
 		}
-		cmd_usage(cmdtp);
-		return 1;
+		return cmd_usage(cmdtp);
 	case 4:
 		if (strncmp(argv[1],"saw",3) == 0) {
 			duration = simple_strtoul(argv[2], NULL, 10);
@@ -382,8 +379,7 @@ static int cmd_sound(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 			pcm1772_write_reg((uchar)reg, (uchar)val);
 			return 0;
 		}
-		cmd_usage(cmdtp);
-		return 1;
+		return cmd_usage(cmdtp);
 	case 5:
 		if (strncmp(argv[1],"saw",3) == 0) {
 			duration = simple_strtoul(argv[2], NULL, 10);
@@ -412,8 +408,7 @@ static int cmd_sound(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 						channel);
 			return rcode;
 		}
-		cmd_usage(cmdtp);
-		return 1;
+		return cmd_usage(cmdtp);
 	}
 	printf ("Usage:\nsound cmd [arg1] [arg2] ...\n");
 	return 1;
@@ -513,8 +508,7 @@ static int cmd_beep(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 			channel = LEFT_RIGHT;
 		break;
 	default:
-		cmd_usage(cmdtp);
-		return 1;
+		return cmd_usage(cmdtp);
 	}
 
 	if ((tmp = getenv ("volume")) != NULL) {
diff --git a/board/trab/cmd_trab.c b/board/trab/cmd_trab.c
index 6d23470..ca4415c 100644
--- a/board/trab/cmd_trab.c
+++ b/board/trab/cmd_trab.c
@@ -167,10 +167,8 @@ int do_burn_in (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 	int i;
 	int cycle_status;
 
-	if (argc > 1) {
-		cmd_usage(cmdtp);
-		return 1;
-	}
+	if (argc > 1)
+		return cmd_usage(cmdtp);
 
 	led_init ();
 	global_vars_init ();
@@ -270,14 +268,11 @@ int do_dip (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	int i, dip;
 
-	if (argc > 1) {
-		cmd_usage(cmdtp);
-		return 1;
-	}
+	if (argc > 1)
+		return cmd_usage(cmdtp);
 
-	if ((dip = read_dip ()) == -1) {
+	if ((dip = read_dip ()) == -1)
 		return 1;
-	}
 
 	for (i = 0; i < 4; i++) {
 		if ((dip & (1 << i)) == 0)
@@ -303,14 +298,11 @@ int do_vcc5v (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	int vcc5v;
 
-	if (argc > 1) {
-		cmd_usage(cmdtp);
-		return 1;
-	}
+	if (argc > 1)
+		return cmd_usage(cmdtp);
 
-	if ((vcc5v = read_vcc5v ()) == -1) {
+	if ((vcc5v = read_vcc5v ()) == -1)
 		return (1);
-	}
 
 	printf ("%d", (vcc5v / 1000));
 	printf (".%d", (vcc5v % 1000) / 100);
@@ -331,10 +323,8 @@ int do_contact_temp (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	int contact_temp;
 
-	if (argc > 1) {
-		cmd_usage(cmdtp);
-		return 1;
-	}
+	if (argc > 1)
+		return cmd_usage(cmdtp);
 
 	tsc2000_spi_init ();
 
@@ -354,36 +344,32 @@ U_BOOT_CMD(
 
 int do_burn_in_status (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
-	if (argc > 1) {
-		cmd_usage(cmdtp);
-		return 1;
-	}
+	if (argc > 1)
+		return cmd_usage(cmdtp);
 
 	if (i2c_read_multiple (I2C_EEPROM_DEV_ADDR, EE_ADDR_STATUS, 1,
-				(unsigned char*) &status, 1)) {
+				(unsigned char*) &status, 1))
 		return (1);
-	}
+
 	if (i2c_read_multiple (I2C_EEPROM_DEV_ADDR, EE_ADDR_PASS_CYCLES, 1,
-				(unsigned char*) &pass_cycles, 2)) {
+				(unsigned char*) &pass_cycles, 2))
 		return (1);
-	}
+
 	if (i2c_read_multiple (I2C_EEPROM_DEV_ADDR, EE_ADDR_FIRST_ERROR_CYCLE,
-				1, (unsigned char*) &first_error_cycle, 2)) {
+				1, (unsigned char*) &first_error_cycle, 2))
 		return (1);
-	}
+
 	if (i2c_read_multiple (I2C_EEPROM_DEV_ADDR, EE_ADDR_FIRST_ERROR_NUM,
-				1, (unsigned char*) &first_error_num, 1)) {
+				1, (unsigned char*) &first_error_num, 1))
 		return (1);
-	}
+
 	if (i2c_read_multiple (I2C_EEPROM_DEV_ADDR, EE_ADDR_FIRST_ERROR_NAME,
 			       1, (unsigned char*)first_error_name,
-			       sizeof (first_error_name))) {
+			       sizeof (first_error_name)))
 		return (1);
-	}
 
-	if (read_max_cycles () != 0) {
+	if (read_max_cycles () != 0)
 		return (1);
-	}
 
 	printf ("max_cycles = %d\n", max_cycles);
 	printf ("status = %d\n", status);
@@ -850,14 +836,11 @@ int do_temp_log (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 	struct rtc_time tm;
 #endif
 
-	if (argc > 2) {
-		cmd_usage(cmdtp);
-		return 1;
-	}
+	if (argc > 2)
+		return cmd_usage(cmdtp);
 
-	if (argc > 1) {
+	if (argc > 1)
 		delay = simple_strtoul(argv[1], NULL, 10);
-	}
 
 	tsc2000_spi_init ();
 	while (1) {
diff --git a/board/trizepsiv/eeprom.c b/board/trizepsiv/eeprom.c
index fede2e0..fd623df 100644
--- a/board/trizepsiv/eeprom.c
+++ b/board/trizepsiv/eeprom.c
@@ -42,36 +42,29 @@ static int do_read_dm9000_eeprom ( cmd_tbl_t *cmdtp, int flag, int argc, char *
 static int do_write_dm9000_eeprom ( cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) {
 	int offset,value;
 
-	if (argc < 4) {
-		cmd_usage(cmdtp);
-		return 1;
-	}
+	if (argc < 4)
+		return cmd_usage(cmdtp);
 
 	offset=simple_strtoul(argv[2],NULL,16);
 	value=simple_strtoul(argv[3],NULL,16);
 	if (offset > 0x40) {
 		printf("Wrong offset : 0x%x\n",offset);
-		cmd_usage(cmdtp);
-		return 1;
+		return cmd_usage(cmdtp);
 	}
 	dm9000_write_srom_word(offset, value);
 	return (0);
 }
 
 int do_dm9000_eeprom ( cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) {
-	if (argc < 2) {
-		cmd_usage(cmdtp);
-		return 1;
-	}
+	if (argc < 2)
+		return cmd_usage(cmdtp);
 
-	if (strcmp (argv[1],"read") == 0) {
+	if (strcmp (argv[1],"read") == 0)
 		return (do_read_dm9000_eeprom(cmdtp,flag,argc,argv));
-	} else if (strcmp (argv[1],"write") == 0) {
+	else if (strcmp (argv[1],"write") == 0)
 		return (do_write_dm9000_eeprom(cmdtp,flag,argc,argv));
-	} else {
-		cmd_usage(cmdtp);
-		return 1;
-	}
+	else
+		return cmd_usage(cmdtp);
 }
 
 U_BOOT_CMD(
diff --git a/board/w7o/cmd_vpd.c b/board/w7o/cmd_vpd.c
index 44d40ee..cab9881 100644
--- a/board/w7o/cmd_vpd.c
+++ b/board/w7o/cmd_vpd.c
@@ -38,10 +38,8 @@ int do_vpd (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 	uchar dev_addr = CONFIG_SYS_DEF_EEPROM_ADDR;
 
 	/* Validate usage */
-	if (argc > 2) {
-		cmd_usage(cmdtp);
-		return 1;
-	}
+	if (argc > 2)
+		return cmd_usage(cmdtp);
 
 	/* Passed in EEPROM address */
 	if (argc == 2)