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>

1 files changed, 32 insertions, 44 deletions

diff --git a/common/cmd_fdt.c b/common/cmd_fdt.c
index cd4c6de..3d0c2b7 100644
--- a/common/cmd_fdt.c
+++ b/common/cmd_fdt.c
@@ -65,14 +65,12 @@ void set_working_fdt_addr(void *addr)
  */
 int do_fdt (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);
 
-	/********************************************************************
+	/*
 	 * Set the address of the fdt
-	 ********************************************************************/
+	 */
 	if (argv[1][0] == 'a') {
 		unsigned long addr;
 		/*
@@ -116,18 +114,16 @@ int do_fdt (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 			}
 		}
 
-	/********************************************************************
+	/*
 	 * Move the working_fdt
-	 ********************************************************************/
+	 */
 	} else if (strncmp(argv[1], "mo", 2) == 0) {
 		struct fdt_header *newaddr;
 		int  len;
 		int  err;
 
-		if (argc < 4) {
-			cmd_usage(cmdtp);
-			return 1;
-		}
+		if (argc < 4)
+			return cmd_usage(cmdtp);
 
 		/*
 		 * Set the address and length of the fdt.
@@ -166,9 +162,9 @@ int do_fdt (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 		}
 		working_fdt = newaddr;
 
-	/********************************************************************
+	/*
 	 * Make a new node
-	 ********************************************************************/
+	 */
 	} else if (strncmp(argv[1], "mk", 2) == 0) {
 		char *pathp;		/* path */
 		char *nodep;		/* new node to add */
@@ -178,10 +174,8 @@ int do_fdt (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 		/*
 		 * Parameters: Node path, new node to be appended to the path.
 		 */
-		if (argc < 4) {
-			cmd_usage(cmdtp);
-			return 1;
-		}
+		if (argc < 4)
+			return cmd_usage(cmdtp);
 
 		pathp = argv[2];
 		nodep = argv[3];
@@ -202,9 +196,9 @@ int do_fdt (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 			return 1;
 		}
 
-	/********************************************************************
+	/*
 	 * Set the value of a property in the working_fdt.
-	 ********************************************************************/
+	 */
 	} else if (argv[1][0] == 's') {
 		char *pathp;		/* path */
 		char *prop;		/* property */
@@ -216,10 +210,8 @@ int do_fdt (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 		/*
 		 * Parameters: Node path, property, optional value.
 		 */
-		if (argc < 4) {
-			cmd_usage(cmdtp);
-			return 1;
-		}
+		if (argc < 4)
+			return cmd_usage(cmdtp);
 
 		pathp  = argv[2];
 		prop   = argv[3];
@@ -247,9 +239,9 @@ int do_fdt (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 			return 1;
 		}
 
-	/********************************************************************
+	/*
 	 * Print (recursive) / List (single level)
-	 ********************************************************************/
+	 */
 	} else if ((argv[1][0] == 'p') || (argv[1][0] == 'l')) {
 		int depth = MAX_LEVEL;	/* how deep to print */
 		char *pathp;		/* path */
@@ -281,9 +273,9 @@ int do_fdt (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 		if (ret != 0)
 			return ret;
 
-	/********************************************************************
+	/*
 	 * Remove a property/node
-	 ********************************************************************/
+	 */
 	} else if (strncmp(argv[1], "rm", 2) == 0) {
 		int  nodeoffset;	/* node offset from libfdt */
 		int  err;
@@ -321,9 +313,9 @@ int do_fdt (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 			}
 		}
 
-	/********************************************************************
+	/*
 	 * Display header info
-	 ********************************************************************/
+	 */
 	} else if (argv[1][0] == 'h') {
 		u32 version = fdt_version(working_fdt);
 		printf("magic:\t\t\t0x%x\n", fdt_magic(working_fdt));
@@ -351,16 +343,16 @@ int do_fdt (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 		       fdt_num_mem_rsv(working_fdt));
 		printf("\n");
 
-	/********************************************************************
+	/*
 	 * Set boot cpu id
-	 ********************************************************************/
+	 */
 	} else if (strncmp(argv[1], "boo", 3) == 0) {
 		unsigned long tmp = simple_strtoul(argv[2], NULL, 16);
 		fdt_set_boot_cpuid_phys(working_fdt, tmp);
 
-	/********************************************************************
+	/*
 	 * memory command
-	 ********************************************************************/
+	 */
 	} else if (strncmp(argv[1], "me", 2) == 0) {
 		uint64_t addr, size;
 		int err;
@@ -370,9 +362,9 @@ int do_fdt (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 		if (err < 0)
 			return err;
 
-	/********************************************************************
+	/*
 	 * mem reserve commands
-	 ********************************************************************/
+	 */
 	} else if (strncmp(argv[1], "rs", 2) == 0) {
 		if (argv[2][0] == 'p') {
 			uint64_t addr, size;
@@ -417,8 +409,7 @@ int do_fdt (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 			}
 		} else {
 			/* Unrecognized command */
-			cmd_usage(cmdtp);
-			return 1;
+			return cmd_usage(cmdtp);
 		}
 	}
 #ifdef CONFIG_OF_BOARD_SETUP
@@ -430,10 +421,8 @@ int do_fdt (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 	else if (argv[1][0] == 'c') {
 		unsigned long initrd_start = 0, initrd_end = 0;
 
-		if ((argc != 2) && (argc != 4)) {
-			cmd_usage(cmdtp);
-			return 1;
-		}
+		if ((argc != 2) && (argc != 4))
+			return cmd_usage(cmdtp);
 
 		if (argc == 4) {
 			initrd_start = simple_strtoul(argv[2], NULL, 16);
@@ -449,8 +438,7 @@ int do_fdt (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 	}
 	else {
 		/* Unrecognized command */
-		cmd_usage(cmdtp);
-		return 1;
+		return cmd_usage(cmdtp);
 	}
 
 	return 0;