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>

4 files changed, 9 insertions, 26 deletions

diff --git a/arch/powerpc/cpu/mpc512x/diu.c b/arch/powerpc/cpu/mpc512x/diu.c
index f638c00..9ef5609 100644
--- a/arch/powerpc/cpu/mpc512x/diu.c
+++ b/arch/powerpc/cpu/mpc512x/diu.c
@@ -111,10 +111,8 @@ int mpc5121diu_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/arch/powerpc/cpu/mpc8260/bedbug_603e.c b/arch/powerpc/cpu/mpc8260/bedbug_603e.c
index 2488612..89193a3 100644
--- a/arch/powerpc/cpu/mpc8260/bedbug_603e.c
+++ b/arch/powerpc/cpu/mpc8260/bedbug_603e.c
@@ -71,10 +71,7 @@ void bedbug603e_do_break (cmd_tbl_t *cmdtp, int flag, int argc,
   /* -------------------------------------------------- */
 
   if (argc < 2)
-  {
-    cmd_usage(cmdtp);
-    return;
-  }
+    return cmd_usage(cmdtp);
 
   /* Turn off a breakpoint */
 
@@ -118,10 +115,7 @@ void bedbug603e_do_break (cmd_tbl_t *cmdtp, int flag, int argc,
   if(!(( isdigit( argv[ 1 ][ 0 ] )) ||
 	(( argv[ 1 ][ 0 ] >= 'a' ) && ( argv[ 1 ][ 0 ] <= 'f' )) ||
 	(( argv[ 1 ][ 0 ] >= 'A' ) && ( argv[ 1 ][ 0 ] <= 'F' ))))
-  {
-    cmd_usage(cmdtp);
-    return;
-  }
+    return cmd_usage(cmdtp);
 
   addr = simple_strtoul( argv[ 1 ], NULL, 16 );
 
diff --git a/arch/powerpc/cpu/mpc83xx/ecc.c b/arch/powerpc/cpu/mpc83xx/ecc.c
index 8dadd64..f8eab96 100644
--- a/arch/powerpc/cpu/mpc83xx/ecc.c
+++ b/arch/powerpc/cpu/mpc83xx/ecc.c
@@ -118,10 +118,8 @@ int do_ecc(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 	writeback[0] = 0x01234567UL;
 	writeback[1] = 0x89abcdefUL;
 
-	if (argc > 4) {
-		cmd_usage(cmdtp);
-		return 1;
-	}
+	if (argc > 4)
+		return cmd_usage(cmdtp);
 
 	if (argc == 2) {
 		if (strcmp(argv[1], "status") == 0) {
@@ -350,8 +348,7 @@ int do_ecc(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(ecc, 4, 0, do_ecc,
diff --git a/arch/powerpc/cpu/mpc8xx/bedbug_860.c b/arch/powerpc/cpu/mpc8xx/bedbug_860.c
index 9deda6c..83db035 100644
--- a/arch/powerpc/cpu/mpc8xx/bedbug_860.c
+++ b/arch/powerpc/cpu/mpc8xx/bedbug_860.c
@@ -70,10 +70,7 @@ void bedbug860_do_break (cmd_tbl_t *cmdtp, int flag, int argc,
   /* -------------------------------------------------- */
 
   if (argc < 2)
-  {
-    cmd_usage(cmdtp);
-    return;
-  }
+    return cmd_usage(cmdtp);
 
   /* Turn off a breakpoint */
 
@@ -121,10 +118,7 @@ void bedbug860_do_break (cmd_tbl_t *cmdtp, int flag, int argc,
   /* Set a breakpoint at the address */
 
   if( !isdigit( argv[ 1 ][ 0 ]))
-  {
-    cmd_usage(cmdtp);
-    return;
-  }
+    return cmd_usage(cmdtp);
 
   addr = simple_strtoul( argv[ 1 ], NULL, 16 ) & 0xfffffffc;