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authorWolfgang Denk <wd@denx.de>2010-07-17 01:06:04 +0200
committerWolfgang Denk <wd@denx.de>2010-07-24 20:43:57 +0200
commit47e26b1bf91ddef69f4a3892815c857db094cef9 (patch)
tree7d688085d23779707c637703273f79bd3cca83e0 /board/amcc/taihu
parentdebb6299ac1180a08f29f88c6d782b21a9c98707 (diff)
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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>
Diffstat (limited to 'board/amcc/taihu')
-rw-r--r--board/amcc/taihu/lcd.c20
-rw-r--r--board/amcc/taihu/taihu.c15
2 files changed, 13 insertions, 22 deletions
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;