cmd: blk_common: Use macros for the return values

Avoid using magic number 0/1 for the command result.

Signed-off-by: Bin Meng <[email protected]>
Reviewed-by: Tom Rini <[email protected]>

cmd/blk_common.c

@@ -25,18 +25,18 @@ int blk_common_cmd(int argc, char *const argv[], enum uclass_id uclass_id,
 	case 2:
 		if (strncmp(argv[1], "inf", 3) == 0) {
 			blk_list_devices(uclass_id);
-			return 0;
+			return CMD_RET_SUCCESS;
 		} else if (strncmp(argv[1], "dev", 3) == 0) {
 			if (blk_print_device_num(uclass_id, *cur_devnump)) {
 				printf("\nno %s devices available\n", if_name);
 				return CMD_RET_FAILURE;
 			}
-			return 0;
+			return CMD_RET_SUCCESS;
 		} else if (strncmp(argv[1], "part", 4) == 0) {
 			if (blk_list_part(uclass_id))
 				printf("\nno %s partition table available\n",
 				       if_name);
-			return 0;
+			return CMD_RET_SUCCESS;
 		}
 		return CMD_RET_USAGE;
 	case 3:
@@ -49,7 +49,7 @@ int blk_common_cmd(int argc, char *const argv[], enum uclass_id uclass_id,
 			} else {
 				return CMD_RET_FAILURE;
 			}
-			return 0;
+			return CMD_RET_SUCCESS;
 		} else if (strncmp(argv[1], "part", 4) == 0) {
 			int dev = (int)dectoul(argv[2], NULL);
 
@@ -58,7 +58,7 @@ int blk_common_cmd(int argc, char *const argv[], enum uclass_id uclass_id,
 				       if_name, dev);
 				return CMD_RET_FAILURE;
 			}
-			return 0;
+			return CMD_RET_SUCCESS;
 		}
 		return CMD_RET_USAGE;
 
@@ -80,7 +80,7 @@ int blk_common_cmd(int argc, char *const argv[], enum uclass_id uclass_id,
 
 			printf("%ld blocks read: %s\n", n,
 			       n == cnt ? "OK" : "ERROR");
-			return n == cnt ? 0 : 1;
+			return n == cnt ? CMD_RET_SUCCESS : CMD_RET_FAILURE;
 		} else if (strcmp(argv[1], "write") == 0) {
 			phys_addr_t paddr = hextoul(argv[2], NULL);
 			lbaint_t blk = hextoul(argv[3], NULL);
@@ -98,7 +98,7 @@ int blk_common_cmd(int argc, char *const argv[], enum uclass_id uclass_id,
 
 			printf("%ld blocks written: %s\n", n,
 			       n == cnt ? "OK" : "ERROR");
-			return n == cnt ? 0 : 1;
+			return n == cnt ? CMD_RET_SUCCESS : CMD_RET_FAILURE;
 		} else {
 			return CMD_RET_USAGE;
 		}